
"How To Win Friends And Influence People" Dale Carnegie. He put forth a massive, evolving effort researching how the most successful socializers easily won people over.
Here it is for free in complete audiobook form. 7 hours. https://www.youtube.com/watch?v=n4R2p9WnzAo
As a second good book I read recently... Feeling Good, by David Burns. He spent his life in the depression / brain chemistry / psychotherapy scene and here's his word.
I couldn't find an audiobook but here's his talking about it https://www.youtube.com/watch?v=Bb7BkL7ytzI