Anyone with a cat knows that they love reading a book with you. If the book is a small, one-hand-managed type, the cat’s pleasure is immense. From their perspective, you have become a dedicated lap focused on their pleasure.
However, if the book is large, you know your sweet kitten will become an annoyingly discontented, purring, nipping beast until you put the book down and give them the required attention they feel they need. Then, and only then, will your precious ball of fur settle down to enjoy the book.