I would like to recommend the Hove book by Jonathan Eastland, "Leica R8".

IMHO it is the definative operating manual, clearly explaining many of the obscure intracies of this camera.

The sections on the metering system and program mode are especially interesting as well as the subtleties of flash operations with the SCA system.

It's saved me a headache a couple of times and is far easier to comprehend than the Leica instructions.

Has anyone seen the new Hove Leica pocket book 7th edition? I hear it has more evaluative lens information?