I was given this many years ago, and found it while working through the
bookshelves. It’s a somewhat scholarly treatment of the subject of time
machines from the physical, philosophical, theological, and science
fictional points of view, and includes a vast bibliography. It’s
somewhat slightly interesting, and if the subject of time machines
fascinates you more than it does me you might want to see if you can
scare up a copy.

But if not, not.