Here's the book, Ezio. I can't read it all but it seems to date back to the Roman Empire. I could pick out Julius Caesar's name on the tree as well as a few of the Templars. In addition, there seem to be depictions of the Apple, drawings and diagrams. I may be wrong, but there were quite a few guards around the room, which casually opened books people left with. They didn't realize I had it when they inspected me. After five books of embroidery and etiquette, the two at the entrance exhanged looks of exasperation, telling me to run along to my family. The fake cover over it also worked well.
I'll have to figure out another bookworm trick for the next mission.