Title: Two-minute Puzzle Book, The: Puzzles To Train Your Brain, Author: David Hillel Goodman
Title: Brain Games!: Ready-to-Use Activities That Make Thinking Fun for Grades 6 - 12, Author: Jack Umstatter
Title: Reading Power 2 Student Book / Edition 4, Author: Linda Jeffries
Title: Basic Reading Power 1 Student Book / Edition 3, Author: Linda Jeffries
Title: Challenging Minds: Thinking Skills and Enrichment Activities, Author: Lynne Kelly