Make sure the graphs, including lines and points, are clear and legible. Make sure the width-to-length proportion has not been distorted and that captions and labels are easy to read. The graph should not have superfluous data.
Assign numbers to the graphs in ascending numerical order (Figure 1, Figure 2). Capitalize and italicize the titles of graphs, and place captions below the graph, aligned to the right. The x and y axes should be labeled.
One of the APA's guidelines is that any graph must be referenced and explained within the text. In other words, don't include a graph that is designed to be supplementary but is not specifically addressed by the text of the paper.
Column width should be between 2 inches and 3.25 inches; for double-column graphs, the width must be between 4 and 6.75 inches. Make sure abbreviations and symbols are defined in a separate legend, if not already explained in the text. The graph should not contain borders.