Almost everyone has read (or at least heard) of The Goal written by Eliyahu M. Goldratt. The sequel too turned out to be very popular - though not immediately in India; only when It's Not Luck was re-titled as The Goal II that the sales picked up!
Personally, I think It's Not Luck is a far more important book that The Goal. It's Not Luck discusses a more comprehensive Thinking Process whereas The Goal is a more spoon-feeding kind of solution offer; perhaps that's why The Goal is more popular.
There is, of course, another reason why The Goal is more popular. It is infinitely more readable. It reads like a novel. And the credit to that should go to the co-author of The Goal, Jeff Cox. After having read both the books, I think Jeff's narrative style makes all the difference.
Naturally the next question is: where is Jeff Cox now? Turned out that he is active and doing some good work even now. Here is his website if you want to follow him up.
What you have not read The Goal yet? Sad. Very Sad.