If you are looking for a more AP approach to getting your baby to sleep I highly recommend The No Cry Sleep Solution  - gentle ways to help your baby sleep through the night by Elizabeth Pantley

The book is for people who want to avoid any of the "crying ou"methods.  It is a wonderful book.  Elizabeth Pantley is a an author and parent educator who  is highly endorsed by the super AP Dr Sears family of  authors. 

I also recommend these other two books by her:

Kid Cooperation: How to Stop Yelling, Nagging and Pleading and Get Kids to Cooperate
and
The No-Cry Discipline Solution: Gentle Ways to Encourage Good Behavior Without Whining, Tantrums, and Tears