When I was in my early 20s my immediate reaction to hearing about any new personal-development / self-help book was that it's probably BS. Then occasionally a

When I was in my early 20s my immediate reaction to hearing about any new personal-development / self-help book was that it's probably BS. Then occasionally a couple caught me. Seven habits, GTD, How to win friends... are the 3 books that left a lasting impression with me. Now in my early 30s I look at new productivity / self-help tools like the way I look at any given religion. You probably don't really need it but it might just be the one that works for you. And if it makes you a better person without messing with anybody/anything else then go right ahead. There's no one size fits all.