The Rudman books are dynamite... except for one thing. The large amount of data and info regarding the world of lithable papers - all of which are out of production. Makes you want to go have a good cry.
Sign up for Tim's mailing list though - Foma was about the last line of truly lithable papers (except for the Slavitch which is hard to get in the US)... then they changed their gelatine and POOF, no more infectious development. Supposedly they're working on a fix. The Foma 123 was nice - gritty, not a lot of color (the Slavitch is gritty as hell). Fingers crossed - Lith appeals to me like nothing else, I'd gladly make it my main printing style if there were a good range of papers.
I got one of those vintage food warmers on eBay and it's great for experimenting with warm developer, and (what Mr. Rudman calls) "hot and strong" selenium toning. Which you really want to do outdoors, by the way - ouch!