211 pages (paper version) - are there any pictures/diagrams?
Also;
Hardcover: ISBN-10 = 1738768228 & ISBN-13 = 978-1738768226
Paperback: ISBN-10 = 1738768244 & ISBN-13 = 978-1738768240
Yet in some other places (Penguin Bookshop, AbeBooks) it's different; are there other versions?