Oxford University Press publishes a series of books called Recreations
in Mathematics. The series editor is David Singmaster of Rubik's
Cube fame.
They are priced at about $28 each.

As of Oct 90 the series contains the following:
#1 "Mathematical Byways ...", by Hugh ApSimon.
#2: "Ins and Outs of Peg Solitaire", by John Beasley.
#3: "Rubik's Cubic Compendium", by Rubik, et al.
#4 "Sliding Piece Puzzles", by L.E. Hordern.
#5 "The Mathematics of Games", by John Beasley.
#6 "The Puzzling World of Polyhedral Dissections", by Stewart Coffin.
#7 "More Mathematical Byways", by Hugh ApSimon.

 TO ORDER:  Send check or credit card info (MASTERCARD OR VISA) to:
        SCIENCE & MEDICAL MARKETTING DIRECTOR,
        OXFORD UNIVERSITY PRESS
        200 MADISON AVE,
        NEW YORK, NY 10016  - 
-- >  ADD $1.50 for shipping