Trading Binary Options for Fun and Profit Quotes

“Here you start by selecting a barrier. If you bet “Touch” and the price of the asset “touches” (meaning it is equal to or passes through) that barrier at any time up until expiration you win. Or select “No Touch” and you win if the price of the asset never touches the barrier until expiration time.”
― Jose Manuel Moreira Batista, Trading Binary Options for Fun and Profit: A Guide for Speculators