Im sure this has been covered here already somewhere.

I am new back to uo here over the last month.I scored a scrappers compendium the other night.I quickly transferred it to my scribe to load the book up.
I see so many other people carrying the same book,but the book has o spells in it.
Heres lies the ?
Do you have to have the spells in that book(say the scrappers)or just arm it and cast of another book in your pack,while still getting the bonuses from the one you have armed?

Seems to me you would have to scribe it full.
Just wondering if others have found a loophole or are just proud to have a cool looking book.

As long as you have a full mage spellbook in your backpack, you can cast any mage spells, even if the book you are 'carrying' in your hands is empty - so people equip the Scrappers for the bonuses it gives (those only work when it's equipped!), but are too cheap to fill it with spells, since their existing book works fine and is blessed anyway.