My own reading is summarized by the acrostic GROWTH.
G: Greats which the widely recognized classics. And since you should not just read the greats, but reread them that is happening more as I age. So a read and then reread of The Taming of the Shrew by Mr. Shakespeare is common . By the way, I did not start reading Shakespeare until my early forties. There is hope for anyone!
R: Reviews I need to write or books for upcoming interviews.
O: Other reading that doesn’t neatly fit in the five main categories. It is only as time permits which is rare! These kinds of books might find their way on vacation…which has also been rare these past several years.
W: Word of God. Commentaries and any book which helps me know the Bible better. And yes, I like to read commentaries cover to cover like real books.
T: Teaching preparation which can be just about anything.
H: History which I am regularly reading.