Captions are explanatory material that appear usually below an illustration. Captions are capitalized sentence-style (CMS16, 8.164). Do not end captions with periods if they consist solely of incomplete sentences. In captions consisting of one or more complete sentences, each element has closing punctuation.
Captions are better placed before figures/tables/illustrations that occupy more than one page.
Captions, along with their associated figures/tables/illustrations, should be submitted as separate files, not inserted into the article's manuscript at the desired location. A parenthetical "(fig. 3)" in the text, for example, should indicate the approximate desired location.