Dirk Gently's Holistic Detective Agency
Sold £9, Aug 2026
Search by title, author, ISBN or series, then narrow it down. Every book lists its editions, what each is worth, and how to spot the first.
harr pott phil finds Philosopher's Stone.1937, 1950s, 1950-1959, 1950- or year:1960-1969.first to put first editions at the top.author:, publisher:, series:, illustrator:. Use quotes for spaces: author:"j k rowling".
Harmony Books, 1991 cover
Another edition's cover
Simon & Schuster, 1988 cover
Printed price on the front flap: £10.95
Harmony Books, 1984 cover
Another edition's cover