Boosting a childs confidence

Okay....not sure if this is the correct place to post this but here goes.....

My DS#1 is 3.5 yrs old and DH and I feel he suffers from a lack of confidence. My personal belief is that it stems from me having PND when he was born and it only being diagnosed when he was almost 6 months old. (I don't have it anymore which is why I did not want to post this in the PND private thread) Anyways, I was VERY over protective of him as a baby / young toddler and was always in dread of something happening to him; accidents and even death. I was either bawling my eyes out or yelling and screaming at this tiny little baby....makes me sick to my stomach now when i think of how horrible that must have been for him. :cry::cry::cry:

I was wondering if there is a highly recommended book about ways of boosting a child confidence?

Thanks in advance.

xxxx