I am far from a great trader and definitely in the category of novice. My brother recommended I read this book and its follow on. The knowledge I picked up from both books coupled with a lot of reading and research spawned by what I found in the book have allowed me to generate decent returns on investments that have been stagnant for about a year. Within a three week time period I was able to go from being in the hole 6% in unrealized gains to being up over 10% in unrealized gains. I have since realized those gains and re-invested them looking to turn some more profit.So I would say this is definitely a worthwile read for those interested in finding out how the big investors/traders became who they are and trying to come up with your own methodology for not falling into some of the pitfalls the market holds for the novice investor.