Mad Libs Forever Author:Roger Price, Leonard Stern Mad Libs Forever is an oversize collection of five fabulously fun Mad Libs books in one, all for the low price of only $6.99! Readers will spend hours filling in the blanks of Dance Mania Mad Libs, Grand Slam Mad Libs, Ninjas Mad Libs, Happy Birthday Mad Libs, and Spy Mad Libs. This 240-page book has a value of $19.95!