The magazine was initially bimonthly. The first three issues were named with two months: "June–July 1953", and so on. At the end of 1953 the naming was changed to the odd numbered months; and then after January, March, May, and July, the magazine went monthly, starting with the September 1954 issue. This lasted without a break until the November 1958 issue. Another bimonthly schedule, starting with January 1959, followed; the last King-Size Publications issue was September 1959, and it was followed by an October 1959 issue from Great American. The remaining five issues followed a regular monthly schedule; the last issue was March 1960. The volume numbering scheme was fairly regular; the first five volumes had six numbers each. Volume 6 had only five numbers, in order to get the new volume 7 to start with the new year, in 1957. This lasted until volume 10 was cut short at five numbers when the magazine returned to a bimonthly schedule at the end of 1958. Volume 11 had six numbers; volume 12 had five.