This book is essentially a teaching machine.
Stuart Margulies is a Chess master and also a recognized.
Bobby Fischer lent his name to the project.
This is called "programmed learning." The real authors were experts and authorities in the field of programmed learning.
If you give the wrong answer, it tells you why the answer is wrong and tells you to go back and try again.
If you give the right answer, it goes on to the next question.
The way a teaching machine works is: It asks you a question.
This book is essentially a teaching machine