The term "major publishers" refers to large, well-established companies that specialize in producing and distributing books or other printed materials. These are typically organizations with a long history of publishing books, often working with prominent authors and releasing titles across various genres. They may also have subsidiaries or imprints that focus on specific types of literature or target audiences. Major publishers tend to have significant resources and influence in the industry, and their publications are widely distributed through bookstores, libraries, and other channels.