Honest opinion on self help books?

readers, do you think self help books actually work?

what's your honest take on these books?

i think a few of them sometimes help as reminders but not too much. I mean if someone wants to fix their life, they already know what to do. they just need to muster up the will power and discipline for that.

no book will "teach" you how to make friends. but that's just my opinion.

what do you think?