August 6th Update
An improved way to read the book online
Starting today, there's a new way to read the book @ wiki.solidbook.io.

This new wiki features several improvements based on feedback I've received from early readers of the book. Here are a few of the new features.
Bookmarkable pages
In the previous version of the book, all the content was on one page. That made it hard for readers to…
Howdy 👋
This is an online wiki about the main topics over the last 40 years of software design, architecture & testing. It was created by Khalil Stemmler.
This wiki's mission is to help eliminate the unknown unknowns, helping you get up to speed on the best practices and principles to write testable, flexible, and maintainable code.
I created this wiki while I was connecting the dots on my own path. You can read more about that learning journey in the introduction
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 solidbook.io to buy the book/wiki! 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 at khalil@khalilstemmler.com.