In reply to kevin stephens:
In no particular order:
Matt Rendell's Pantani biography is a really good read and focuses on the fragility of his character as much as anything else. Lots of EPO science too if that is your thing.
I enjoyed Racing Through the Dark a lot. Millar's career pretty much spans the period I've been following cycling seriously so interesting from that perspective
Charly Wegelius - a different view on the peloton than the usual list of yellow jersey wearers. Didn't warm to him at all points and finishes on a kind of bitter note, but well worth it for being different.
Daniel Friebe's Eddy Mercx is also a great read. I knew a bit about the legend and some of the headline stats but this really opened up that bit of cycling history for me.
Not an auto-biog but Sky's the Limit was an enjoyable and easy read. I think I went through it in a long weekend.