The CMake Cookbook is hosted on GitHub, where you can find the source code, PDF, and issue tracker. The repository is located at https://github.com/cmake-cookbook/cmake-cookbook .

You can download the CMake Cookbook PDF from GitHub, along with the source code for the book. The PDF is available under a Creative Commons license, which allows you to share and modify it freely.

The CMake Cookbook is a free, open-source book that provides a collection of recipes and techniques for using CMake effectively. The book covers a wide range of topics, from basic CMake usage to advanced techniques for managing complex projects.

CMake is a cross-platform build system generator that allows you to manage your project's build process in a flexible and efficient way. It's widely used in the software development industry, and is the de facto standard for building C++ projects.