The Dalek annuals were released in two groups. Three came out during the earliest stirrings of Dalekmania in the 1960s, and the remaining four came out in the late 1970s. The first so-called "Dalek annual" actually preceded the first Doctor Who annual, and was one of the very first pieces of Doctor Who merchandise. The 1960s books — published by Souvenir Press —all had different names, while the 1970s World Distributors "sequels" were all printed under the name, Terry Nation's Dalek Annual.