"Amazing" began as a bedsheet format magazine and remained so until October 1933, when it switched to pulp size. With the April–May 1953 issue "Amazing" became a digest. Seven issues in the early 1980s, from November 1980 to November 1981, were a half-inch taller than the regular digest size, but thereafter the magazine reverted to the standard digest format. In May 1991 the magazine returned to a large format, but this lasted only until the Winter 1994 issue, and the next three issues were digest-sized again. When the magazine reappeared in 1998, it was in bedsheet format and remained that size until the very end. The last issue, March 2005, was distributed only as a PDF download, never as a physical magazine. The volume numbering contained some irregularities: the numbering given in the tables above appears to be in error for the period from 1979 to 1983, but in fact it is given correctly in the table. Vol. 27 no. 8 was a single issue, not two, as it seems to be from the table; it was dated Dec 1953/Jan 1954.