This guide really should be sold in Cranky Kong's Shop. It's just that vital to getting through the 8+ worlds of Donkey Kong Country Returns. While I didn't really use the guide until after I had beaten the game and started going back to collect stuff, it's been worth its weight in bananas! As you will see in a minute though, this is the way the guide was meant to be used.
Although the guide isn't the traditional sort of guide. Which is to say it doesn't lead you by the hand through the tough obstacles of the game. It does a fabulous job of showing where all of the Puzzle Pieces, Hearts, Coins and Bonus Levels are located. It would have taken me ages to find some of this stuff without this guide's help.
The maps in the guide are great and serve as an easy way to pick out vital information visually while playing. Each K-O-N-G letter, puzzle piece and bonus level are clearly marked and numbered so you can go directly to the paragraph of information on the thing that you're trying to get, or in my case locate the nearest heart refill. XD
The guide also does a great job of explaining enemy tactics, and the controls for the game, which really helps. Bosses are covered almost in passing, but cursory techniques and strategies are covered, if ever so briefly.
The only negative that I can think of is that I would have liked a little more thorough description of boss fights and the mini levels that lead up to some boss fights. As well as some tips on Time-Attack challenges. But these are in no way deal breakers. If you are going to buy or have bought DKCR for yourself or someone else as a gift, I can guarantee they will enjoy having the guide as well.