You'll probably have to rotoscope the book. I'd try just desaturating it. That way it'll still look shiny, but it won't look green.
Is there an easier way to rotoscope the book? With the book color matching the surrounding colors, I would most likely have to adjust every frame, right? If you had to do it, how would you go about rotoscoping the book out?
I wouldn't go every frame at first. Basic roto techniques would apply!
Set keyframes at extreme positions and then go halfway between those keyframes and adjust. Then halfway between those and adjust again. You may eventually have a mask shape keyframe on every frame, but you'll get there a lot faster. More tips here: After Effects Help | Managing and animating shape paths and masks
First, are you going to use the entire 10 minute take in the production. That's an awful long time to go on a single shot. If not, pre-edit the piece so you only have to work on the parts of the shot you are going to use plus a few frames for "handles" to allow for some fine adjustments in the final edit.
Second, when you roto you'll probably only have to do the polygon that describes the book. You should be able to rely on keying to cut out around the fingers. You'll just have to layer the composite properly.
This kind of manual roto can go very quickly. I almost always Stabilize motion picking a point that I want to hold still, then add a colored layer with a blend mode so I can see through it and do the roto masking on the solid. When the roto works I remove the stabilization by adding a null and adding expressions to tie the position of the null to the anchor point of the 'stabilized' layer and then parent the track matte and the footage to the null. EZ as pie. Here's a quick tutorial on the process.
The null and parenting trick works much better than what I did here.