#1 Tailoring and couture titles are by Robert Doyle (1936- ), a Canadian costume designer.
#2 Banned Books title is by Robert P. Doyle (1951- ), executive director of the Illinois Library Association.
#3 Robert C. Doyle - Signs & Wonders and Evangelicals
#4 Robert L. Doyle - Almost Alchoholic
#5 Robert Doyle - How to Study
#6 Robert A. Doyle - Straight Razor Collecting: An Illustrated History and Price Guide
#7 Robert Doyle - Must See Ireland