HarperPrism on title page and spine, HarperPaperbacks on copyright page except for printing statement.
Possibly intended as a trade paperback original as copyright page states that a hardcover edition was printed in the UK by Simon and Schuster, Ltd.
"First Prism Printing: April 1997" and "97 98 99 00 B&T 10 9 8 7 6 5 4 3 2 1" on copyright page.
Catalog of Copyright entry TX0004516659 puts the publication date at 1997-03-14.
Pages [340]-[345] are an episode guide to seasons 2 and 3.
Pages [346]-[350] are a bibliography of source material and further reading.
Heavily illustrated with screen shots from the television series and photographs and drawings from various books.
LCCN from LOC lookup, covers both volumes one and two
