Title: Train Your Brain: A Year's Worth of Puzzles / Edition 1, Author: George Gratzer
Title: Words, Words, Words: Ready-to-Use Games and Activities for Vocabulary Building, Grades 7-12, Author: Jack Umstatter
Title: Brain Games!: Ready-to-Use Activities That Make Thinking Fun for Grades 6 - 12, Author: Jack Umstatter
Title: English Teacher's Book of Instant Word Games, Author: Ruth Rice