Head First C# @HeadFirstCSharp
Head First C# by @AndrewStellman & @JennyGreene is a fun, fast, and effective way to learn to code with C#! Download the first four chapters: https://t.co/wRtIAcTDJB github.com/head-first-csh… Joined November 2018-
Tweets880
-
Followers951
-
Following486
-
Likes2K
Have you checked out the new Blazor Web Application projects in Visual Studio 2022 Preview? This is huge for .NET web development! And I'll cover it in my @OReillyMedia live training course next month. There are still open slots—register today! learning.oreilly.com/live-events/fu…
A random test drive! We use the .NET Random class throughout Head First C# (@OReillyMedia). Here's how we help you get to know it better by kicking its tires and taking it for a spin. From Head First C# by @AndrewStellman and @JennyGreene
Why would I want to use an interface in C# instead of just writing all of the methods I need directly into my class? Answering your questions about interfaces in Head First C# (@OReillyMedia) by @AndrewStellman and @JennyGreene
XAML is an important building block for many C# apps. A lot of people have questions about it—we answer them in Head First C# (@OReillyMedia) by @AndrewStellman and @JennyGreene.
Top-level statements were added to C# just after we finished the 4th edition of Head First C# (@OReillyMedia). They totally changed how we teach important ideas in our new edition—and they have a really valuable lesson for anyone who wants to learn (or teach!) coding. Curious?
Happy Sunday afternoon! Looking for a quick, fun project to practice your C# skills on Windows or Mac? Try the Animal Matching Game from Head First C# (@OReillyMedia). Download the free PDF from our GitHub page to get started! github.com/head-first-csh…
Just updated one of my favorite parts of Head First C# (@OReillyMedia) for the next edition teaching about paper prototypes! The book is about learning C#—but we also want to help our readers become better developers. This is a great opportunity to teach a really useful skill.
Another win for the 5th edition of @HeadFirstCSharp. In the 4th ed. I worked closely with folks from the @VisualStudioMac team—especially @jongalloway, a real privilege!—to support VS for Mac. Thanks to MAUI, I can move all that material out of an appendix and into the main book.
@HeadFirstCSharp @dotnet Working with MAUI has been such a pleasure. The best part is that our readers can write apps for their mobile devices again! We had a Windows Phone (RIP 😢) game in the 3rd edition, and I loved that. Super grateful to @PureWeen and @maddymontaquila for the assist with MAUI code!
Working on making some really exciting changes in the next edition of @HeadFirstCSharp – especially moving to @dotnet MAUI. The more I use it, the more I love it! We're diving right into writing fun apps, starting with a game. I love how it came out! 👀
Working on the next edition of Head First C#. One of the big changes is that we're switching from WPF to .NET MAUI for our apps that have a user interface—and I am LOVING IT! One of my favorite things is it gives me a chance to talk about #accessibility #a11y from the beginning.
You can use the static File and Directory classes in @dotnet to work with files and directories. If you want to work with an object, use FileInfo instead of File. Working with files in @HeadFirstCSharp (@OReillyMedia) by @AndrewStellman and @JennyGreene
I got the feedback from the folks at O'Reilly online learning about my latest #Blazor live training workshop that I ran for them. People really liked it! Everyone gave it either a 9/10 or 10/10 (except for one 8/10), and the comments were really positive!
@_philipjc I would love to but currently on @HeadFirstCSharp Refreshing IDE knowledge and looking at some old creations and how well they aged 😆 You got this!! 🙌
Every Unicode character—including emoji—has a unique number called a code point. You can download a list of all of the Unicode characters here: unicode.org/Public/UNIDATA… Demystifying Unicode and UTF8 in Head First C# (@OReillyMedia)
When you're learning C#, @VisualStudio and @VisualStudioMac are fantastic tools to help you learn and explore. We use them throughout Head First C# (@OReillyMedia) as learning tools.
Quick project from Head First C# (@OReillyMedia): build a C# program that uses a Dictionary to store retired baseball jerseys. A Dictionary can have duplicate values, but every key must be unique. Can you think of a way to store retired numbers for multiple teams?
A paper prototype can be a valuable first step in designing a video game—and if you've played tabletop games, you might find them really intuitive! Exploring paper prototypes in Head First C# (@OReillyMedia)
A paper prototype can be a valuable first step in designing a video game—and if you've played tabletop games, you might find them really intuitive! Exploring paper prototypes in Head First C# (@OReillyMedia)
Interested in building full-stack web applications with C# and .NET? There are still slots left for my Blazor Fundamentals training session on @OReillyMedia Learning! I'm super excited to teach this fast-paced workshop on Friday. Hope to see you there! oreilly.com/live-events/bl…
Test your C# collection skills! Can you do this Code Magnets exercise from Head First C# (@OReillyMedia) on paper—without using @VisualStudio? Here's the solution: github.com/head-first-csh…

Scott Hanselman 🌮 @shanselman
321K Followers 10K Following VP of Developer Community @ MSFT - Code, OSS, STEM, Beyoncé, 🏴🇿🇼#T1D, #DevRel YouTube+TikTok listen to the @Hanselminutes inclusive tech podcast!
Christian Findlay @CFDevelop
12K Followers 5K Following #Flutter 💙 #dotnet | Agitating for improvement and crusading against nonsense as Director of @nimblesite
Jimmy Engström #Blaz... @EngstromJimmy
4K Followers 2K Following 🏆 Microsoft MVP, Educator of the Year 2025 🎤 Speaker 🦝 Author Web development with Blazor 🌐 @CodingAfterWork host https://t.co/z0BzWlqk1Q
Niels Swimburger.NET ... @RealSwimburger
5K Followers 3K Following 🇧🇪🍟🇺🇸 Software Engineer @buildwithfern and https://t.co/quiBYPLnJk. Microsoft MVP focusing on C# .NET.
Andrew Stellman 👾 @AndrewStellman
2K Followers 884 Following Author, developer, AI researcher, team lead. @OReillyMedia books include Head First C#, Learning Agile, and Head First PMP. 🔗 https://t.co/TEy5yWZ4iq
Davide Bellone | Code... @BelloneDavide
6K Followers 1K Following Author | International Speaker | Microsoft MVP | I publish content about #csharp, #dotnet, and #softwareArchitecture. 👨💻 Author of https://t.co/gYcixImyb6 🐧
Thorsten @thjvdb
50 Followers 284 Following Embedded software/hardware developer and linux/unix enthusiast
Fred Bloggs @BlokeInFrance
1 Followers 130 Following
Julijan Plenča ♟�... @JulijanPlenca
3 Followers 373 Following Schachtrainer, Unternehmer und Mensch – lehre kluge Züge, entwickle Strategien und genieße dabei eine gute Tasse Kaffee. Verbreite Liebe. Und Schachregeln.
Roy Dziyanjanani @RDziyanjanani
74 Followers 393 Following
NextGenEngineerLeader @NextGnEngLeader
5 Followers 105 Following
Ayush_Semwal @Doc_Wane
0 Followers 11 Following
BuildWithCSharp @ali_ogochu2581
533 Followers 2K Following Full-Stack Developer | MERN + SQL | C# Developer | Always learning, always building
Ihemegbulam Promise @IhemegbulamP
27 Followers 134 Following
Samir Vohra @imsamirvohra
32 Followers 686 Following
sai suhas P.G @saisuhasPG92747
0 Followers 20 Following
Sai @indian0960
0 Followers 67 Following
Uday Kumar @UdayKumar9554
4 Followers 55 Following
Teddy Mauricio Paz M @paz_ted
77 Followers 488 Following Soy una persona devoradora de información nueva, con ambición de aprender más, capacidad de trabajo en equipo, proactivo, observador y autodidacta.
Chioma Okongwu @OkongwuChi4
1 Followers 21 Following Backend Software Developer | C# | .NET Core | ASP.NETCORE | Microservices | Open to Developer Roles & Internships
aime @aklougbo
4 Followers 111 Following
Mr. Punk da Silva @MrPunkSama
303 Followers 2K Following 👨🏾💻 Full Stack Developer ✍️ Writer at devto & tabnews 🎨 Terminal Graffiti Artist 💡 "The impossible is what makes me hard" 🌳 https://t.co/vATB3vpPnU
Scritches JRC @scritches
552 Followers 6K Following This account is run by a feral service animal. All content is personal.
Mohamed Ali @AshourXOfficial
23 Followers 709 Following Software Engineer | .NET Building scalable web apps & APIs | Clean Code & Architecture Opinions are my own
Ravindra Vairagi @vaishnavravi33
125 Followers 6K Following Full stack developer with expertise in https://t.co/5mPvVjJOQc, .Net Core, Angular, API, SQL and SQL server. Blog: https://t.co/xMC2W3UQFR
Igor Nazarov @INazarov8398
5 Followers 236 Following
~Ka @karthika
451 Followers 1K Following script enthusiast - data explorer- automotive https://t.co/w6TF1Mgld9
Diego de Jesús @ddejesusr_
12 Followers 559 Following
Rickie Payne @Cherokee_AIM
15 Followers 204 Following Building something bigger than me. 📈 Mind on growth | 💼 Hustle mode | 💡 Always learning
Vikrant Patil @PatilVikrant12
41 Followers 823 Following 👨💻 Learning C# , .NET ,SQL | 📚Explore the Web and Ai | Growing with #RoExanneSpirit | 🚀A new Hope about Coding | #CSharp #DotNet #SQL
Amin #Algeria - أم�... @aminalgeria
726 Followers 414 Following الإسلام ديننا * والعربية لغتنا * والجزائر وطننا شعب الجزائر مسلم وإلى العروبة ينتسب #Algeria
M.said @mostafa41226132
28 Followers 376 Following Web Developer & Designer | | Making designes exploration accessible | HTML, CSS, JavaScript, React 🚀
Niroechkumarᅠᅠᅠ... @nirochkumar
144 Followers 1K Following
Juraj Tomek @JurajYoulai
4 Followers 106 Following
Josh the pirate @Josh_the_pirate
14 Followers 141 Following
Arnauld Ouanes @ArnauldOuanes
33 Followers 560 Following Ethical Hacker 💻 || Vinted Seller 📦🛍️ || Night Worker || TikTok Chef 👨🍳 || Book Writer 📚 || Cats Lover 🐈⬛ || France 🇫🇷🥐🥖 Paris 🧀🍷🍇 ||
Marcos Antonio Gambet... @MAGambeta
17 Followers 804 Following C/C++/xBase developer, learning other languages (Rust, Python, Go, etc...)
Ahmet Soner @ahmettsoner
913 Followers 2K Following Software Architect | Specializing in distributed systems and scalable architectures | Enthusiast of cutting-edge technologies and innovation.
Precious @Preciou20239931
56 Followers 1K Following Junior Backend Engineer & Content Writer 📄💻 | Mentoring aspiring devs 👨💻 | Code, content, and guidance for growth
coderbest @coderbest1
16 Followers 2K Following
TheMillennialGamer @TehMillennial
51 Followers 183 Following As you age, your favorite video games and their personalities age with you. TehMillennial brings you the gaming satire no one else is willing to cover.
7 @no91836
287 Followers 7K Following
Ales Ciuha @AlesCiuha
90 Followers 722 Following
Frank Wayne Burcaw @aspiecoder
20 Followers 457 Following Software Engineering in the Spectrum... coding through an autistic lens
HeHo @BorstyOWL
4 Followers 151 Following
Christian Findlay @CFDevelop
12K Followers 5K Following #Flutter 💙 #dotnet | Agitating for improvement and crusading against nonsense as Director of @nimblesite
Andrew Stellman 👾 @AndrewStellman
2K Followers 884 Following Author, developer, AI researcher, team lead. @OReillyMedia books include Head First C#, Learning Agile, and Head First PMP. 🔗 https://t.co/TEy5yWZ4iq
Davide Bellone | Code... @BelloneDavide
6K Followers 1K Following Author | International Speaker | Microsoft MVP | I publish content about #csharp, #dotnet, and #softwareArchitecture. 👨💻 Author of https://t.co/gYcixImyb6 🐧
Håvard @HavardLangdal
25 Followers 176 Following Dad, dog dad and software engineer at Microsoft Norway 🐕🦺💻
Albert Bennett @albert1bennett
42 Followers 162 Following Senior full stack...#software developer, avid #hiker and occasional #blogger. Find out more about my work on: https://t.co/tMrpaSnib5
C# Advent @CsAdvent
359 Followers 77 Following Starting on December 1st, the C# Advent will reveal TWO new C# blog posts every day up to and including December 25th.
Rohit Gupta @RohitGuptaWeb3
174 Followers 146 Following 🇮🇳 | Technical Lead | Springdalian | Eccedentesiast | Cognitive Robotics Enthusiast | Intel® AI Edge Scholar | TED Circles Speaker | GenX
Anton Wieslander @anton_t0shik
3K Followers 68 Following Software Engineer & educational content creator on Youtube. Mainly interested in .NET C#, Python and Clojure.
Nithin Mohan(#LifeOfA... @nithinmohantk
759 Followers 1K Following Azure/.NET Junkie | .NET Foundation Member | OSS Contrib | Cloud/IoT Evangelist | Technical Architect | Blogger | Modern Web Dev | Hardware Geek |
Romanx - @romanx@hach... @ItemLevel1
92 Followers 162 Following Current maintainer of Nustache project and it's successor Stubble. He/him @[email protected]
Nate Curtiss @natecurtiss_yt
7K Followers 556 Following Creative Director - Content Strategy @ Dragonfruit (2B+ views) | N8Wealth
Laurent Kempé 🦋 @... @laurentkempe
1K Followers 880 Following Team Lead, Distinguished Solution Architect with a passion for shipping high quality products by empowering development team and culture.
Dante Gagne 🇺🇸 ... @DanteGagne
652 Followers 371 Following Former Program Manager for Visual Studio with a love for math and gaming. I loved my job!! Opinions my own. (He/Him)
Tim Corey @IAmTimCorey
11K Followers 122 Following Microsoft MVP. I make learning easy. If you want to learn C#, this Mastercourse will teach you more than a degree: https://t.co/98XPHj83Op
Antonia Forster @AntoniaRForster
12K Followers 2K Following Senior XR Engineer @Avantis | ex-Unity | TED Speaker | Award-Winning Director of https://t.co/WQAghCpyZF | https://t.co/MLqv1G7PkJ | Opinions my own 🌈
O'Reilly UK @OReillyUK
759 Followers 310 Following
HermitsCave-DevStuff @HDevstuff
1 Followers 39 Following Enterprise Architect and Solutions Builder - Just Re-Booting
Jordan Matthiesen @JMatthiesen
2K Followers 758 Following AI tooling and developer experience PM | formerly in .NET team at Microsoft. Avid gardener. Lover of music. Always learning the guitar.
Cody @cl_beyer
544 Followers 26 Following Program Manager working on Dev Tools @ Microsoft. Opinions are mine.
Kendra Havens #BlackL... @gotheap
13K Followers 584 Following I'm a Senior Product Manager at UiPath. (Formerly on the .NET team at Microsoft) My opinions are my own, not my employer's. (and vice versa :P) She/her
Suzanne Huston @suzhuston
445 Followers 1K Following Late-night baker, daydream believer, cat herder at Google Developer Studio. Opinions are my own and do not represent those of my my employer.
David Hemsworth @GameDevDavid319
3K Followers 1K Following 30 Graduated from De Montford University I edit for the TheBlueFlame channel https://t.co/egV9kT4ZNa Dyslexic and have Dyspraxia
【沢AIZOU... @PhantomNoCry
264 Followers 64 Following ✦3D Game Developer, Graphics & Game Combat Engineer ✦3D-2D PC/WebGL Games ✦UE4/Unity3D/VROID/C4D ✦3D/2D Animator Personal Projects : https://t.co/U7qLO1UQ7a
Justin Johnson @profexorgeek
902 Followers 855 Following PM Lead for Minecraft Bedrock core engine team @mojang @microsoft. Maker/hacker/gamedev. Caretaker of RettSyndrome child. Opinions my own.
Michael Hayter @ExpanseVRDev
25 Followers 98 Following Game loving Unity Developer who specializes in VR and Shader Graph
Rob Zimmerman @603Zim
280 Followers 594 Following Decent Golfer. Hobby Game Developer. Avid builder of software tools. @melissaB0213's biggest fan. Creator of 3 Up Golf & Pin Sheet Pro 💚 #603
Bret @bretgamedev
254 Followers 272 Following I made a game called PERISH at our two-person indie studio ITEM42. Currently making DEFICIT. Philosophy graduate.
Bert Cole | Composer ... @BitByBitSound
550 Followers 397 Following Christian | Composer | Sound Designer #RPGArchitect #MagicOfSpring #Erebe Level 37 Bardbarian https://t.co/h0MeJoQRXX https://t.co/YveOp1ExOI
Nana 🎮 🌱 (Barel... @NanaGameDev
2K Followers 1K Following ㅤShe/Herㅤ ୭̥⦆ Spanish gamedev and creative mindㅤ ░▋( Game Designer at @TequilaWorks )❚❙❘⠀Now on @nanagamedev.bsky.social
Eroxxie @Eroxxie
47 Followers 30 Following Swedish guy that types a bunch of jibberish and then you can play it! I'm a game maker, using game maker🎮👾
Ádhamh Ó Cearbhaill @AdamTCarroll
132 Followers 327 Following Quality Assurance Lead, Game Dev, Satirical by Nature, 7.8Bu7.8B (My stupid opinions are mine & mine alone)
Craig Moore @ashiitaka
731 Followers 1K Following Project Lead @DRStudios, occasional #IndieDev. He/Him
Jakob Hammer @Jakob_Hammer
92 Followers 492 Following ⛵️ Captain of S/Y Skrauti 📸 Photography & Storytelling 🎲 Addicted to (Board)games 👨🏼🔬 MSc. Medialogy & Experience Design 🔎 Esport Experiences and VR
OctoMan @Mr_OctoMan
2K Followers 129 Following Unity Game Coach - 3D Artist - Indie Gamedeveloper, 3D-Models & Unity #indiedev #gamedev #Unity Patreon: https://t.co/KaLkEZFJ69
Sharped 🕹️ @devsharped
32 Followers 32 Following #gamedeveloper from Italy 🇮🇹 Working with @AndreaNedra and @Arooslab Making: - #unity3d tutorials on YouTube 📹
Enigma 23 @en9g131
264 Followers 303 Following Unity Asset Store Publisher Indiegame dev, solo dev making games with Unity & hope.
Tomer (with the box g... @ShaharTomer
487 Followers 371 Following I usually make games that are hard to explain. 'Dialogue Box' is also hard to play. Try the beta! https://t.co/jYkyHfxKfm
Dom Doorbar @doorbard
79 Followers 669 Following 26 year-old brightonian indie game developer. Developing a passion for all things Pixel Art, 3D Modelling & Game Dev 😁
CJ Knapp @CooperJKnapp
119 Followers 1K Following I build spaces and places. Associate Dungeon Designer @Diablo. Opinions are my own, do not represent the company, etc.
Vignesh Krishnan @vikky_krish
127 Followers 498 Following Developer Relations @catalystbyzoho. Infrequent 3D Artist and gamedev.
Daniel Zeller @zellah
7K Followers 966 Following Fluffy Grooming Tool: https://t.co/67erieiDrt Instagram: https://t.co/uasORqdpNa
Joshua Holden @OriginalJoshua
176 Followers 54 Following software/code geek, and lover of all things Microsoft.
Dr Sam Walpole @dr_sam_walpole
2K Followers 923 Following Software Engineer @JustGiving. Scientist turned full stack developer. I write about web development, .NET, C#, JavaScript, VueJS. He/him.