Shepard was instrumental in documenting the work of the
Alfred Wolfsohn Voice Research Centre and collaborated with
Paul Newham to formulate an
extended vocal technique based on the analysis of
speaking and
singing voices from diverse cultures and
oral traditions. Shepard also curated and either published or archived hundreds of documents and
audio recordings including Irish
ballad sheets and original examples of
street literature, a subject on which he was considered an authority. In addition, Leslie Shepard was cited as an expert on the writings of
Bram Stoker, Irish author of the 1897
Gothic horror novel
Dracula. In collaboration with Albert Power, Shepard publicized and organized the
Bram Stoker Society collecting, cataloging, and archiving numerous writings about both
Stoker and the mythical
Vampire, which the novelist used as the basis for the
title character and
antagonist '
Count Dracula' in his novel. ==Selected publications==