Instead of giving an immediate bonus to the skill, increase the guildmax of
first guild player is member of, that has that skill. For example, I am
LOC/tiger/spider/nav in that order. I read a skillbook and recieve dodge
bonus. My dodge max in LOC guild is incresed by 10 to 70. Since tiger max is
90, too bad, so sad. But let's say I read book and get parry bonus - I would
then be able to train parry to 100 in LOC. Sweet. If I read a book and got
defence sense, this would give +10 to the guildmax in the tiger guild, since
defence sense is not available in the LOC guild. And so on and so forth for
Knowledge of Infernal Entities in my 3rd guild, spiders, and then for Mastery
of Locating in my 4th guild, Navs.

If this sort of system could be implemented, it would make sense since one
isn't capable of learning a massive amount of information instantly anyway.
Instead, a knowledge book would essentially be acting as a guide to furthuring
one's character over a more extended period of time, past what one would be
capable of learning (training) from one's guildmaster. Perhaps instead of the
book dissapearing, it would be a chestable item that you would be required to
take to your guild when training, to show to your gm. Since guildmasters are
considered masters of the skills they teach to their members, they would be
able to interpret the book and be capable of teaching said skills to you, for
even an increased exp (or monetary) cost if necessary. The "power" of a
knowledge book could be based on the level of the monster that dropped it. If
one was lucky enough to find a knowledge book from say, Lord Soth, this book
would be much more useful than one dropped by a 50k "huge ogre bashing you".
Such a format could allow for larger monsters to drop books to teach more
powerful skills, or even perhaps multiple skills from the same book. And the
amount capable of being learned from a book could be random over a perhaps,
wider range, instead of just starting and 10, and ending at 1.

Jacen