We use secure Spiral Coil binding, which is far superior to any other type of binding. Spiral Coil bound manuals will lay flat when folded back on themselves which saves space in your work area! 

• Comb Binding: books will not lay flat, comb can open up and pages become loose.
• Wire Coil Binding: Stiff, rigid, easily bent, and crimped which will tear pages over time.
• Thermal Binding: Book will not lay flat, glue breaks down over time, pages become loose.

This manual is printed on smooth, 100 bright 28 lb acid free paper:

• It won't turn yellow with age
• Reduces or eliminates bleed-through from images and text on adjacent pages
• Less bleed-through = easier to read!

Others use low quality 20 lb or 24 lb copier paper, and tell you it's just as good as 28 lb paper. It's not, it's flimsy copier paper!