The author provides a guide to network programming using Internet sockets for those who know some C or C++. The sockets API has been ported to many platforms, including Unix, Linux, and Windows. The API may be overwhelming, but the guide should help readers jump into network programming with ease. The guide includes errata, HTML, PDF, and examples for readers to download. There are also translations available in different languages, and translators and writers can clone the guide from GitHub and follow the README. Contact information is provided for questions or updates.
https://beej.us/guide/bgnet/