Logic is no longer the arid academic subject it once was, with philosophical origins dating back to Ancient Greece. Today it plays a prominent part in modern thinking and technology, especially in electronic circuitry and computer programming. Logic might therefore be considered as having acquired a new mantle - 'machine thinking' or breaking down problems into simple (logical) units : YES and NO or 0 and 1. In this absorbing book the author takes us along the historical path of considering what logic is all about and how the thought processes engendered became the building blocks of the new electronic revolution. The early chapters describe types of logic and their use. Chapters on Deductive and Inductive Logic cover traditional ground, and the numerous examples provide practice in the thought processes involved. Another chapter covers the use of logic in solving aptitude tests and the remaining detailed chapters show how to cope with Venn diagrams; simple logic diagrams; simple arithmetic or numeracy logic; block logic and truth tables; algorithms; Boolean algebra; Karnaugh maps and logic circuits. The book will be found to help in everyday life as a valuable tool in problem solving whether it is at the 'intelligence', 'intellectual' or mathematical and computer level. This is an entirely new approach to a subject that has had its proponents since time immemorial, and deals equally helpfully with puzzles and real-life situations.