With thumbnail descriptions of countries and territories, covering population, currency, etc., along with regional maps and blank pages for making notes, the pocket-sized “Traveler’s Passport: Caribbean, Central America, South America” by Ron Snipe (6"x4½", 64 pages — $7.99 on Amazon.com) serves as a quick-reference guide and trip keepsake. Designed with cruise ship passengers in mind. Also available, “US & Canada,” with other regions in the works. Visit snipe-international.com.