I hate how self-help books by charlatans have come to dominate bookstores. At least the YA novel craze that Harry Potter started were actual novels.
The problem is rich and famous assholes realized they could make easy money by paying some poor bastard on Diver to write a biography or self-help book, then pop it up on Audible and watch the profits roll in.
It's money for no effort, their favorite kind.