His books focus on habit formation and change, productivity and organizational behavior, and aspects of conversation and communication. Key emphasis areas include social psychology, self-improvement, and business/productivity themes.
Listings show his titles in paperback and hardcover, and at least one large-print paperback edition is available.
Page counts vary by title. Examples from available listings include 208, 320, 383, 400, 432, and 448 pages.
Most listings show English-language editions, and at least one Spanish-language edition is also available.
Dimensions vary by edition. Heights range from about 7.8 to 9.49 inches, widths from about 5.1 to 6.4 inches, depths from about 0.63 to 1.14 inches, and weights from about 0.5 to 1.49 pounds across the listings.
The large-print paperback edition shown in the listings has 448 pages.