Writing paper is a type of paper used for writing and printing documents. It comes in a variety of sizes and types, including foolscap (8 letters), ola (3 letters) and VELLUM (6 letters). Foolscap is a type of paper measuring 13.5 inches by 16.5 inches, which is commonly used for legal documents. Ola is a type of paper made from the bark of the mulberry tree, which is often used for calligraphy and other artistic purposes. VELLUM is a type of parchment paper made from calfskin, which is often used for documents that require a high level of durability.