Leather Pro! ® Leather Care Technician Manual: 225 Pages in Full Color. Over 100 Pictures of step-by-step leather cleaning procedures. This manual is also a published book with a copyright© and it assisted in setting the bar for the IICRC Leather Cleaning Technician Course. The Manual is the same manual Leather Pro! ® uses in teaching the IICRC Leather Cleaning Technician Course. Manual covers the gambit of History, Definitions, Tanning, Identification, Leather Types, Cleaning, Potential issues and much much more….