The inside of a Hardcover Book has a wrap glued across it. The wrap is frequently solid black.
- Black wraps are unprinted.
- Special Effects Printing are available inside but very uncommon.
- A black wrap pairs well with a glued on sleeve or swinging sleeve.
- A black wrap may only be visible at the inner spine if a sleeve and booklet obscure the end panels.
Alternate wrapping options include a full color printed wrap and kraft tan material.