Manning is an independent publisher of computer science books and video courses for software developers, engineers, architects, system administrators, managers and those in the computer science industry. The company also publishes for students and young programmers, including occasionally for children. It is a virtual organization based on Shelter Island, New York, with many staff working remotely.
Manning was the first computer science book publisher to sell their books as unprotected PDFs, something that later became commonplace. They were the first to start selling books before they were finished, in the Manning Early Access Program, giving access to readers as quickly as possible.