Merck Manual

The Merck Manual's first published in 1899 as a small reference book for physicians and pharmacists, growing in size and scope to become one of the most widely used comprehensive medical resources for professionals and consumers. As the Manual evolved, it expanded the scope and depth of its offerings to reflect its mission of providing the most up-to-date medical information to a diverse range of users, including medical professionals and students, veterinarians and veterinary students, and consumers.