4 Booklets
4-1 Definition
4-2 Paper
4-3 Physical Standards for Booklets
4-4 General Booklet Design and Sealing
4-5 Tabs, Tape, and Glue
4-6 Simple Spine Booklets
4-6.1 Overview
4-6.2 Simple Spine Booklets
4-6.3 Lightweight Simple Spine Booklets
4-6.4 Mid-weight Simple Spine Booklets
4-6.5 Heavy-weight Simple Spine Booklets
4-7 Wallet-style Booklets
4-8 Oblong Booklets
4-9 Quarter-folded Booklets
4-10 Folded Self-mailers
