I honestly don't think there is just one book that you can learn all there is to know about sewing and making stuffed animals. However, here are a few that I have found very helpful:
www.amazon.com/Sewing-Tiny-Toy…
www.amazon.com/Making-Adorable…
www.amazon.com/Bean-Bag-Buddie…
www.amazon.com/Wild-Wonderful-…