DVDs

How numbers get used and abused in the courtroom

Hardcover: 320 pages

Crack open Ruby Redfort’s second adventure — and you will literally be on the edge of your wits.

Nearly Gone

How do you catch a thief who isn’t there? Ruby discovers the perils of throwing caution to the wind as she embarks on her fourth adventure.

Letters to a Young Mathematician

More Without Words, by James Tanton

Almost 300 other mathematical puzzles appear in this original collection, devised by world-renowned mathematicians, puzzle creators, and devoted puzzle lovers.

KenKen Method — Puzzles for Beginners, The

Paperback | 448 pages

by Frank Farris | Hardcover | 248 Pages

A fun and stunningly illustrated introduction to the art of linear optimization