how to create written books with static content

[Torojima]

Does anybody know of a nice explanation/tutorial about written books with mod defined content? I would like to add a book to my mod with the explanation of the usage as content. Right now the only way I'm could imagine is to extend the book GUI and the respective book item to avoid having to put the content into NBT for every instance of the book (not that much of a problem in single player, but if there is a multiplayer world with lots of players and every one would have some of these books, the save would needlessly blown up by exact copies of the same text ...)

 

... does anybody have a better idea than extending book GUI and book item?

[ObsequiousNewt]

Copy and modify the class, I figure, would be your next best bet.