I bought this because I've become so unfit since leaving uni and starting a desk job...
First of all, this book is all about the basics. The army has tried and tested methods of getting their recruits fit. There's no gimmicks, no tricks, no shortcuts; the army has no product to sell. There's no secret to getting fit - you just need to put in the effort and commitment.
Don't be put off by the fact it is an army book - it doesn't expect you to run for hours with bricks in your burgen or have you crawling through ditches! Everything in this book is do-able, and the programs build your fitness up progressively over time.
All-round fitness comes through three components - Cardiovascular exercise, Strength training and Flexibility. This book has sections for all of these with large pictures detailing each of the exercises included in the training programe. It also has helpful little tips to get the most out of your time and effort. Also there are warm up/cool down exercises. My only word of warning is that this guide focuses on running for it's main staple of cadio activity. So bear in mind you WILL be running!
The middle part of the book details the full itinarary of exercise programs over 36 weeks -3 progressively harder stages, each 12 weeks long. By the time you get to the end of 36 weeks you will be army fit.
It also has a 4 week conditioning routine for people who haven't run in years - this prepares you for the first stage of the program.
There is a helpful section detailing targets to aim for - run times, healthy body weights, BMI, fat levels, the 'talk test' (refering to how hard you are exercising).
At the end of the book there is information on how to have a healthy diet. As you know, this is just as important as the exercises themselelves - too much or too little of certain food types mean you won't see results.
At the end of the day this book tells you what you probably already know. Exercise + Healthy diet = Fitness. It makes sense. There is no quick fix and being fit and healthy is a way of life; not a fad diet or brutal (unsustainable) exercise regime. This guide provides all the information required to attain a healthy lifestyle. As i said, no secret, no short cuts, no gimmicks. Put in the time and effort and you will get fit, also find an active hobby you enjoy doing in conjunction with this guide, as you're more likely to maintain and continue your fitness once you've completed the book.
I would recommend this book.