Logic Liftoff Author:Bonnie Risby Logic Liftoff is one of a three book series designed to titillate children's imaginations while sharpening their logical thinking skills. These books give practice in defining relationships, completing sequences, solving analogies, deductions and inferences, reasoning with hsyllogisms, and using logical notation. The skills developed by these bo... more »oks are applicable to several areas of the school curriculum. But beyond the academic world, students will find logical thinking an integral part of everyday life.« less