What is the smallest perfect bound book you can produce? July 12, 2019 19:49 Follow The smallest perfect bound book we can produce is 3.5" x 2" (open size of 7" x 2"). Related articles What is the thickest perfect bound book you can produce? What is the largest perfect bound book you can produce? What are perfect bound books? Inside Pages Setup for a Perfect Bound Book Can I order perfect bound booklets with blank inside pages?