No one could read a Stephenson novel and not recognise his frighteningly powerful grasp of social and political history, and of technology that underpins all his stories. Read the liner notes on Snow Crash and you'll realise this is a man who probably considers Apple's Human Interface Guidelines to be soothing bedtime reading.

In the Beginning...Was the Command Line gives Stephenson an opportunity to flex his own non-fictional muscles. Part memoir, part developer's history of operating systems, it trawls through CLIs (command line interfaces) such as MS-DOS to GUIs (graphical user interfaces), the then-as now--revolutionary Macintosh OS, and everything since: Windows 98 (note: purist Stephenson doesn't even consider this an OS), Unix and Linux.

By the end of his enlightening, exhaustive elucidation of these and other TLAs, you too may suffer the subject of one of the book's final chapters: "geek fatigue". Not to worry--if there's one thing of which you can be certain it's that Stephenson never takes himself, or his subject, too seriously, and anything that cites Dilbert cartoons and H. G. Wells as source material has got to be a giant step forward. --Liz Bailey