World Distributors (Manchester), Ltd later to be known as World International, Ltd. published Doctor Who annuals from September 1965 until 1985 (with the exception of the 1971 and 1972 Annuals).
They also published the 1970s Dalek annual publications; they did not have a hand in the Annual-style Dalek books published in the 1960s. They also produced in 1982 the one-off K9 Annual, as well as Doctor Who and the Invasion from Space, a 1966 release which was an original novella featuring the Doctor.
World Distributors also released a Doctor Who: Press-Out Book in 1977/1978.
They also released Doctor Who Adventures in Time and Space in 1981 featuring reprints from annuals and the Amazing World of Doctor Who. A similar book, Doctor Who Special Journey Through Time, was credited to Cliveden Press, around 1985.