logic

Contains over one hundred problems in which reasoning is required to reach the answer, ranging from easy to relatively difficult. Includes solutions.

Five little devils who live in a statue and come out everyday to enjoy the world decide they each want a part of the world for themselves, but soon realize that the sun cannot stay up without the sky and the seas cannot flow without the pull of the moon, so they return all their treasures.

Introduces the science concept of prediction through the use of simple sentences and everyday examples.

An introduction to the skills of critical thinking that shows how to analyze arguments and identify faulty reasoning, with exercises and answers and a guide to essay writing.