Forsyth's The Shepherd. It's a novella and out of print but
fabulous reading (it was a requirement for my instrument
training).

The original Haley "Airport" (and even Runway 08)

Any of Robin White's books (Flight from Winter's Shadow, Sword
of Orion) (By the way, not aviation related, but very good and
NON FICTION: Hostile Waters, not to be confused with the
schlocky HBO movie of roughly the same subject).

One that was influential on me, but darned if I remember the
name of the author now was a couple of books by a lawyer you
learned to fly in a Cessna 140. Dated even when I read them,
they were probably written in the '50's, but lots of story
about him learning to fly, etc...

While I found Crichton's Airframe to be entertaining, the
numerous defects in the aviation info in it were somewhat
annoying.