It changes all the time: currently I am listening to Americam Gods by Neil Gaiman, also the Hitchiker's Guide tio the Galaxy Omnibus by Douglas Adams , also The Female Eunoch by Germain Greer and Stranger in a Strange Land by Heinlein and many dozens more.
probably a biography of ernest hemmingway. a fascinating character as well as great writer.. really larger than life.
enjoyed novels by dostoyevsky, j. steinbeck, n. mailer, j. updike. and still enjoy d. koonz, j. grisham. too many to list.
Jonathon Livingston Seagull - short, sweet, limitless
Going by amount of times reread...
Excession by Iain M Banks
Pattern Recognition by William Gibson
He Died With A Felafel In His Hand by John Birmingham.
Hard to pick a favorite one, when thee are so many good ones.
Three books I enjoy rereading afer a few years are
Shogun by James Clavell
East of Eden by John Steinbeck
The Persian Boy by Mary Renault
Other favorites
The Butcher's Boy by Thomas Perry
Crime and Punishment by Fyodor Dostoyevsky
The Sound of Waves by Yukio Mishima
Yukio Mishima is a name I have not heard mentioned in many years - I must read his work
Shogun is a favourite too
"Prodigal Summer" by Barbara Kingsolver.
A voracious reader since childhood, there are many books I love.