In the Beginning...was the Command Line is science-fiction author Neal Stephenson's discussion of personal computer operating systems, complete with examples and anecdotes. The book involves Microsoft, Apple, and Linux culture while being critical of particular business practices. In the Beginning...was the Command Line has almost turned 20 years old (published November 9, 1999) and gives readers a look into the history of personal computing, up until the end of the 20th century. Leo considers it well-written, entertaining, quite informative, and highly opinionated. Amazon has the paperback version as well as a Kindle option for those who want to support the author by buying his writing. Highly recommended for tech history buffs.