I'm not saying that the best way to learn how to sing is from a book, but my voice teacher reccomended this and it has great songs. Technique is very important and muscle memory is the hardest thing to correct, so I definitely wouldn't reccomend a book over voice lessons. The book has illustrations and warm ups that can be of assistance if one doesn't have a voice teacher. But no, do not learn how to sing from a book.
-Was that a fart?
-My fault, I fear.