Naval aviators is not a book you can just read through front to back. I copy/pasted each question from the study guide they sent into a word document, put a block of empty space after each question, printed it out, and then looked up each question in Naval aviators, flight theory for pilots, everything explained, turbine pilots flight manual, etc. and attacked that study guide question by question. Seemed like a more logical way to approach studying than just reading through each book. If you are good at video games, have quick reflexes, a good visual scan, and the ability to remember bits of information over a period of time then you will be successful with the cognitive skills test. I remember the Delta/Compass gouges online were very accurate with specific questions to study (3 to 1, 60 to 1, engine start sequence, etc.). Good luck to all interviewing.