Each novella was published in two formats: standard hardback and deluxe hardback. The BBC's licence specifically allowed only hardback releases, although following further negotiations two of the novellas were reprinted in trade paperback (as opposed to the standard paperback format used by BBC Books). Deluxe editions were also published, were often autographed by the author and/or an actor from the TV series; the deluxe edition of Nightdreamers was signed by the author, the illustrator, and actress Katy Manning, who wrote the foreword and whose character Jo Grant appears in the book.