I would recommend reading the book. It has some great settling techniques and isn't about getting bubs into a strict routine. I also borrowed it from the library because I had heard that it was good but didn't want to buy it. He has an interesting theory about colic and that babies need a 4th trimester. He also has another book baby bliss which i also borrowed but it seems to be pretty much the same and i didn't have time to read it.
I have also read Pinky Mckay 100 ways to calm the crying and i didn't really get as many tips out of it, but worth a read if you can find the time.
Good luck!