Not an easy read, but definitely brilliant and worth studying

Having a background in science, with this book I felt the way I used to feel with college textbooks back in my student days - you're happy if you can digest a page or two in a day. But once you Understood the stuff, the Knowledge Becomes a Part of Your internal thinking and reasoning.

Chapter 10 with its ad hoc monadic parser is `` a newbie killer ''. The discussions of parseByte on the website with the text of the book helps. Reading on the State monad helps to understand the chapter too.