This book by renowned professionals in the field of commercial application development in Linux is an excellent reference for a wide range of Linux programmers, as well as those C developers who have moved to the Linux environment from other operating systems. The concepts behind the system application creation process are covered in detail, along with the variety of tools and libraries available. Among the issues discussed in the book are the analysis of the specifics of using GNU licenses, the use of freely distributed compilers and libraries, system programming for Linux, as well as writing and debugging your own portable libraries. An abundance of well-documented code examples helps to better understand the features of programming in Linux. The book is designed for developers of various qualifications, and can also be useful for students and teachers of relevant specialties.