“How to Win Friends and Influence People” was first published in 1936. It’s still very relevant today. I recently went through it and I decided it was worth a share. There nothing that’s rocket science in there, but a lot of common-sense ideas which you may have overlooked.
“Any fool can criticize, complain, and condemn--and most fools do. But it takes character and self-control to be understanding and forgiving.”
? Dale Carnegie, How to Win Friends & Influence People