Johnston's novels have attracted little critical attention, although they are well documented in bibliographies by Larson, Peer, and in
Contemporary Authors. generally do not attract serious criticism and scholarship. Indeed, they are often dismissed as literature. During his career, Johnston's novels were infrequently reviewed. For example, Johnston wrote the
novelization of a 1978 made-for-TV movie about
Martin Luther King Jr., and it received a brief review in
Library Journal. The review was generally negative. Johnston's novels have attracted attention from blog writers who deal with popular culture. For example Morgan wrote about Johnston's
Nanny and the Professor, but he felt that Johnston's books had little to do with the spirit and content of the original television series, whereas Caputo felt that Johnston's
Fantastic Four novel was consistent with the style in the Marvel comic books. Johnston's peers have praised Johnston's work as a tie-in novelist, but they seem equally impressed by the sheer number of tie-in novels he produced. ==Retirement and death==