Greetings from the Simpsons (1990)

Greetings from the Simpsons is a book that contains 32 postcards which can be detached and mailed. Each postcard is a character sketch about a specific character or group. There are 16 different sketches, and the set then repeats for a total of 32 postcards. Each sketch consists of some basic information, a typical quote, one or more secret facts, and a "Mystery Quiz" question.

List of postcards
The set then repeats for postcards 17 through 32.
 * 1) Homer Simpson
 * 2) Bart Simpson
 * 3) Krusty the Clown
 * 4) Patty and Selma
 * 5) Marge Simpson
 * 6) Moe
 * 7) Sideshow Bob
 * 8) Mr. Burns
 * 9) Grampa
 * 10) Lisa Simpson
 * 11) Itchy and Scratchy
 * 12) Principal Skinner
 * 13) Maggie Simpson
 * 14) Bleeding Gums Murphy
 * 15) Ms. Krabappel
 * 16) The Simpsons