Book for introverts

I am an introvert (since birth lol) but I have never felt at peace with my introvertness, especially when it comes to socializing aspect. I love having a small circle of close friends, and I am happy with the people I have, but sometimes I cannot help but belittling myself for having such a small networking circle. Is there a book for introverts learning how to be at peace with themselves and feel happy with who they are?

by Brief_Hat_8975