The decks include 5th edition, Portal, Type I, Type II, Theme decks (like a deck of cards by 1 artist), Multi-player, Extended, and Classic-Restricted Type 1.5. Each deck is given 1 full page of coverage, with the card list to make it, including sideboard. A helpful touch is that there is a quick info box on top of each page with: Type of deck (beginner deck, tourney deck,..); Colors (green, red, ...); Strategy (...use weenies to crush your opponent); Cost (category of price to buy and make the cards in the deck (very low through very expensive); DCI Tourney Category (Type II ..); and the card count (60 main deck, 15 sideboard). This little info box is handy. If you are looking to make a competitive red/green Type II deck from all common cards, you'll quickly find it. If you want to make a Type I deck that will cost you $1500, that's here too. The remainder of each page is dedicated on the strategy for playing the deck.
If you are into building and testing a variety of decks, you'll love this book. Simple and straight-forward.
I have read almost all the Magic books.