Short, easy to read and most importantly - it worked! I bought this book when my daughter was 6 weeks old - and waking up like clock work every 1.5 hours over the course of the night. We implemented Tobin's "no cry" philosophy immediately. It took a lot of work and dedication (many nights it would have been easier just to rock her to sleep) but, by 10 weeks old, she was sleeping 7-8 hours straight. Now, age 4 months, she sleeps 12 hours most nights and at least 8 all nights. It worked and, unlike other books, did not expect me to allow a tiny, helpless infant "cry it out".