Gloss cover and gloss book are two types of paper finishes commonly used in printing.
Gloss cover paper is a heavyweight paper with a glossy finish on both sides. It is commonly used for book covers, brochures, and other marketing materials that require a high-quality and durable paper.
Gloss book paper, on the other hand, is a lighter weight paper with a glossy finish on both sides. It is commonly used for the inside pages of books, catalogs, and other printed materials that require a high-quality finish but don’t need the durability of a cover stock.
In summary, the main difference between gloss cover and gloss book is the weight of the paper, with gloss cover being a heavier weight paper used for covers, and gloss book being a lighter weight paper used for inside pages.