In reply to sasomsok:
Just thinking (whilst ironing and therefore bored): the Frankenjura must be about the best documented major climbing area in the world.
There are three rival guidebooks (Schwertner, Thum, Röker). All three are good, all have more or less definitive coverage, all with pretty much up to date editions in print and easily available. Röker is bilingual English-German, Schwertner has an English-language selected edition ("Frankenjura Extreme"). Plus there is frankenjura.com, with a comprehensive routes database with topos etc.
Of all of which, however, only Röker is really of much use to the non-German-speaking up-to-7a climber.
Post edited at 09:05