While I agree with the other reviews of the book that this is a very accessible text for learning to speak Chinese, I feel I must mention that it doesn't provide most of the Chinese characters for the words, instead only writing them in pinyin. This is adequate for those who are learning to speak Chinese and want to gain fluency in everyday speaking and grammar use, but I did find it frustrating that I had to look elsewhere for the characters. Additionally, I do feel that it would be easier to learn some vocabulary with the Chinese characters - for example the word for flowers, huar, is given, and the word for garden, huaryuan. Are they related? Is it the same root word? Without the character, there is no way to know.
That criticism aside, I do feel that Chinese in 10 Minutes a Day has been very helpful in learning to speak Chinese. It provides a great deal of everyday vocabulary from around the town and house, and presents it in a fun format. It comes complete with stickers to label everyday objects in your house, for example, which act as a constant reminder as to the Chinese words.
I definately recommend this book, with the addition of a good dictionary for the student interested in learning Chinese characters.