Thanks for sharing this great info here.
As you said a book gives guidelines and we have to do the action on the guidelines.
I don't think that a book can teach you on how to be happy but it can give little guidelines and things to think about that might lead you to understanding and practice on enjoying life more.
Also these guidelines have been of help to me
3.You Dont Have To Win Everytime
13.Be Open To New Ideas
16.Believe In Yourself
Thanks for all the guidelines .