Xanth
Deborah Baker first introduced me to this series of books in 1982, and I read the first
nine in the 1980s. The books are set in a pun-infested world in which people have
individual magic powers that they must discover. The first time travel that I remember
was in the 1979 Castle Roogna where characters could step into a tapestry that
took them to the past.
It was embroidered with scenes from the ancient past of Castle Roogna and its environs,
eight hundred years ago.