"Project Gutenberg Letters 1999: Thirteen Letters: December 1998 - December 1999" is a collection of newsletters published by Project Gutenberg between December 1998 and December 1999. The author of this book is Michael Hart, who is known as the founder of Project Gutenberg, the first free electronic library project. In this collection you will find interesting and useful materials related to literature, culture, technology and other topics that reflect various aspects of the work of Project Gutenberg. These lexemes are intended for those interested in learning the history of book collecting or open sources. "Project Gutenberg Newsletters 1999 Thirteen Letters: December 1998 to December 1999" is not only a source of information, but also a window into the world of books, technology and the limitless possibilities they open up to the reader.