I initially ordered this book to learn the Kana, however promptly gave up after 3 or 4 characters. The method the book uses is a brute-force approach. It presents the usage information all together up front (slightly overwhelming before you know any of the characters), then contains pages where you learn to write the characters, leaving you to remember them through repetition.
Instead, I used
Remembering the Kana by James Heisig to learn them, which I'd highly recommend (although you need to be able to think in an American accent for that book to be effective), then used this book as a one-night exercise for practice and refinement.
Two nice things about the book:
1. It contains a CD that tells you the correct pronunciation by a Japanese person, something that you will not get from Heisig's book, which uses only approximation to American-English pronunciation.
2. It contains a review section for both Hiragana and Katakana with a few labelled illustrations for you to practice reading, along with accompanying pronunciations on the CD.
Another feature that would be useful: In
Japanese for Busy People: Kana Version Bk. 1 there is a handy chart of the Hiragana and Kanatana at the back, annotated by stroke order. This book has the chart at the front, but with no stroke order.
In summary, I wouldn't recommend this book for learning the kana from scratch, but it is excellent for practice and reference.