There is 70 moms in the world who are billionaires, but only 8 of them have built their fortune all on their own. One of them is the author of the Harry Potter books, another is the head of L'Oreal cosmetic, find what the other mothers have done to be self made billionaires.
http://finance.yahoo.com/career-work/article/109462/worlds-richest-moms?mod=career-leadership
