14 books • 4 series
Numb and Number
The Things That Nobody Knows: 501 Mysteries of Life, the Universe and Everything (Vol. 1 of 8)
The Things That Nobody Knows: 501 Mysteries of Life, the Universe and Everything (Vol. 2 of 8)
A Brief History of Puzzles
Sloths
The Things that Nobody Knows
Brilliant Chess: Flash (Flash)
Win at Chess (Teach Yourself (McGraw-Hill))
Encyclopedia of Useless Information
Better Chess (Tysg) (Tyg) (Teach Yourself (McGraw-Hill))
Chess (Tyg) (Tysg) (Teach Yourself (McGraw-Hill))
Drunken Goldfish & Other Irrelevant Scientific Research
The Drunken Goldfish
The Kings of Chess