Ironically there’s a lot of sitting around in travel. Plenty of flight attendants bring magazines or books with them, often now reading on a tablet. One British Airways flight attendant got fired for reading her book upside down (it was a dead giveaway she was drunk).
I have to say though this is the absolute best use of a book on an aircraft. Ever.
I hope the pilot pulls this book out of his bag at prior to push back on every flight.