Who is Jay Heimowitz from The Theory of Poker and what is their importance?

Jay Heimowitz is an amateur poker player from Monticello, New York. He began his career playing 25-50 cent poker and was winning about $20 per week.... enough to take his wife to dinner. He later decided that playing $1 limit poker might increase his winnings to $40 per week. Eventually, Jay began playing no-limit hold'em for five and six figures. He believes that you win more when you play for more.