> Books aren't like software where you can release often and iterate. That's not true at all. Check out https://leanpub.com/ https://leanpub.com/, Manning's ME

> Books aren't like software where you can release often and iterate. That's not true at all. Check out https://leanpub.com/ https://leanpub.com/, Manning's MEAPs, The Pragmatic Programmers' Beta books, Apress' Alpha books, Oreilly's Early Release books, etc, etc. Of course these are all digital (mostly PDFs), but they are still very much books.