Twin Horses Grow at His Windy Haven-A Book on Thankfulness was written to be a source of encouragement. It uses real photos of the birth and first few days of twin horses' lives to tell a story of thankfulness. The weaker twin, Sophia, shows thankfulness in many ways. She chooses to give thanks when she can't stand, needs help to eat, and when her mom and brother are doing well, even when she isn't doing so well. We can all learn a little from Sophia.