Alias is yet another popular series I've never managed to catch. It's about Sydney Bristow (played by Jennifer Garner) an international spy recruited out of college and trained for espionage and self-defense. [via link] There's more, but I didn't understand any of it!
The essays in Alias Assumed: Sex, Lies and SD-6 include one by Parenting guru Britta Coleman on why shooting your first born just may be the best parenting decision you’ll ever make, which definitely has me intrigued!
The official companion is Alias Declassified and includes the usual stuff: episode guide, storyboards, cast quotes, etc.
Of course, there're also a couple of unofficial guides: Uncovering Alias includes 'a map of Rambaldi artefacts uncovered by the operatives' and Authorized Personnel Only features 'a mission-by-mission analysis of the series and a catalogue of the agents' personal histories and psychological profiles'.
Like, Charmed, there's a series of Alias novelisations including Namesake which has just come out and Recruited, a prequel to the TV show.