An appropriate time to re-awaken this thread.
Last year I volunteered at a couple of local Lifeline book fairs. At the second one, the co-ordinator said, "oh, I think we have a few books on walking this time," as she knew it was one of my interests.
26 books later

- a few of them are probably outdated, and a few are simply lists of rail trails and short walks, but some gems in there to be sure. "Classic Walks of Australia" - a large hardcover edition, looks like 1980s, a coffee-table type thing.
Amongst those not yet read:
The Bare Foot Bush Walker
Touching The Void (have seen the movie a few times)
Snowy Mountains Walks
Tasman Tracks
20 Best Walks of Australia
Isle of Skye Walks
Off the Beaten Path: Walks of the Dakotas
Lost in the Himalayas was interesting. I wonder how good his recall was though, the state he was in.
Two which I've really enjoyed:
Clear Waters Rising by Nicholas Crane. He came across at the beginning as something of a pompous tw*t, and his reason for the walk was never really made clear, but I warmed to him eventually as he included some very honest thoughts, and the whole journey was fascinating. Him and his umbrella!
Cape Wrath to Brora by Nick Lindsay. A bloke in his early 50's, of average fitness, well-prepared but with no expensive or fancy gear, does a remote week-long walk close to home. Many unfamiliar geographical terms. But just very enjoyable for me - shows that anyone can get out there and have a go, without the latest trendy must-have items, and just appreciate the landscape and the natural world.
For $2 apiece I reckon I've had good value out of this bundle.