My daughter reads all the time. She's always got her nose in a book.
have (one's) nose in a book
To be reading a book. Often used of people who always seem to be reading. He's had his nose in a book for the entire camping trip. I wish he would take a break and enjoy the scenery.Poor Mary is so shy. She just has her nose in a book wherever she goes.
have one's nose in a book
Fig. to be reading a book; to read books all the time. Bob has his nose in a book every time I see him.His nose is always in a book. He never gets any exercise.