This book is essentially a chess teaching machine. The way a teaching machine works is: It asks you a question. If you give the right answer, it goes on to the next question. If you give the wrong answer, it tells you why the answer is wrong and tells you to go back and try again. This is called "programmed learning". The real authors were experts and authorities in the field of programmed learning. Bobby Fischer lent his name to the project. Stuart Margulies is a chess master and also a recognized authority on programmed learning. He is a widely published author of more than 40 books, all in the field of programmed learning, especially in learning how to read. For example, one of his books is "Critical reading for proficiency 1 : introductory level". Donn Mosenfelder is not a known or recognized chess player, but he was the owner of the company that developed and designed this book. He has written more than 25 books, almost all on basic reading, writing and math. The definitive way to learn how to play chess, or to master more complex chess strategies.