A book with all of the KiCad manuals may be found via ISBN 9781680921281 (full-color, hardback) and via ISBN 9781680921274 (grayscale, paperback).
KiCad is an open source software suite for electronic design automation (EDA). It facilitates the design of schematics for electronic circuits and their conversion to PCBs (printed circuit board) design. KiCad was orginally developed by Jean-Pierre Charras, and features an integrated environment for schematic capture and PCB layout design. Color images and text were converted to grayscale.
This Reference Manual focuses on KiCad, the circuit board layout and footprint editor. This book is a printed version of the KiCad manual which may be found for free on the kicad-pcb.org web site.