if you implement what you learn, then yes... if you don't... then don't bother to read in the first place.
I know the Harvey Karp book really helped us cope with a colicky 2nd baby. The Sears book was a lifesaver many times during the 1st year with our #1. I've read the 3rd and 4th book many times looking for encouragement and answers. I'd recommend those four books highly.