Oh gosh, no -- I've always used a very matter-of-fact tone with stuff like that -- "Nope, no books today!" and move on. Making a big deal out of it makes it worse, imo -- showing her that you won't be rattled no matter what tone she uses will teach her that being rude doesn't help her get her way.

Carry on and calmly set those limits! There will be times when she has enormous fits over not getting the book -- hold tight and know that limits are good for her, and she's not experienced enough to set her own limits yet.

Mia