When popular equine photographer Barbara Livingston released her book Old Friends in 2002 to profile and honor Thoroughbred racing's beloved "seniors" through her words and photographs, fan reaction was immediate: "When is Old Friends 2 coming out? " The original book, now out of print, remains popular with collectors. A Lexington, Kentucky, area equine organization even took on the name "Old Friends" to give r etired racehorses a final home. So, now, Livingston is back with More Old Friends, featuring 175 color photographs of some of racing's most revered retirees.