I view self help books in a similar light as management books. They're usually not going to teach me anything new. What they will do is present something I already know, in potentially new ways and new contexts that allow me to contemplate them and keep them more front of mind. I tend to think of it almost like right thought right action. It's also worth noting that sometimes you just need to be at the right moment in time for a lesson to resonate and stick so reading such books can provide more opportunity for that to happen.
I do, however, try to limit who and what I read though because there is a lot of derivative garbage out there.
I do, however, try to limit who and what I read though because there is a lot of derivative garbage out there.