I bought my set from him a couple years ago. The pictures are b&w and for the most part good quality. The main thing is that for Southern rifles it's the best available for the information and the guns shown, and I appreciate his efforts to gather this info. He included his contact info and his phone # is 309-582-2852.
Another book to consider would be one by Dennis, here on this forum. It's well worth the cost, and concentrates mostly on the Gilespie family makers.
John