This book is great for any breastfeeding moms. It tells you everything you need to know from how we produce milk to mastitis. I bought this book when I was getting ready to have twins. I had nursed my first child and needed to find out how to make enough milk for two babies. I don't agree with everything in the book on continued co-sleeping, but this is a very informative book. I just read it again since I have just had my fourth baby. Stephanie