Would you include baby books in your registry?

Bridget • Mama to 2 boys 13 months apart 💕
I have about 50 items total between two registries, and my sister in law has mentioned I should add more because of how many people are attending the shower. What do you guys think about a few (2-3) baby books? Did anyone else put books on their registry? It doesn't seem to be a standard category people include from looking at online checklists, etc., but I feel I've exhausted lots of mainstream categories. 
Also, opinion on adding postpartum pads to the registry? I thought that was too weird and personal- but many checklists I've found online say to include them. Thanks for your help ladies!