sample book; pattern book
A book or catalog containing samples, such as fabric swatches, wallpaper patterns, or product examples, used for selection or reference.
I ordered a sample book to choose new wallpaper.
This sample book contains the latest fabrics.
Compound of 見本 (sample) and 帳 (book, ledger). The exact historical derivation is uncertain, but the word transparently means 'sample book'.