I’m writing a new book about functional reactive programming on iOS, specifically using ReactiveCocoa. It’s going to be a shorter one – about a hundred pages. The source code for the book is available on GitHub.

The book is currently number two on the bestsellers list, and I couldn’t be happier. Thank you to everyone who has purchased a copy. It means a lot to me that people believe enough in my work that they’re willing to buy a book I haven’t even finished yet.