November 8th, 2022 update

Quick update for all solidbook readers

Things are going tremendously right now.

I'm currently teaching the contents of the book to the @Software Essentialist Apprentices. They're making great strides so far, especially @Cohort 1 Software Essentialists who have had the chance to experience v1 of the new learning design. @Cohort 2 Software Essentialists is up for the v2.

Howdy 👋

This is an online wiki and book about the basics of software design and architecture with TypeScript by Khalil Stemmler, Developer Advocate @ Apollo GraphQL .

This book’s mission is to teach developers the essential skills and practices to write testable, flexible, and maintainable code.

You can read more about the learning journey in the "Software Design and Architecture Roadmap 🖼️".

Already bought it?

If you’ve already purchased the book, click here to re-send your link. You can read the online wiki or download a copy of the book in PDF, EPUB, and Kindle versions.

Want access?

You can read the intro to the book for free and visit to buy the book/wiki (it's currently on pre-sale for 33% off)! For recent updates, click here. To get an idea of my writing, read some of my best free content here and here.

Need help?

Something not working? Have a question? You can reach me on Twitter or