Kerbal Player's Guide : The Easiest Way to Launch a Space Program by Paul Fenwick, Alasdair Allan, Paris Buttfield-Addison, Tim Nugent and Jon Manning (2017, Trade Paperback)
A great publication if you are into the Kerbal Space Program. Full of lots of information to get you off the ground, along with more advanced subjects, so you can get the most from his wonderful tongue in cheek space simulator. A great purchase and highly recommended.
Very Interesting book caters for those just learning the mechanics of the game and getting started all the way to the more technically minded who want to write their own code. The book is written in an interesting style to keep the readers attention as well as guiding up through the game basics and beyond.