Current Training Aids come in different forms, including models, displays, slides, books, pictures and media presentations.
During World War II, Graphic Training Aids were in high demand.
Large quantities of young men were recruited which demanded a higher rate of training.
[citation needed] Printed media was also used in the form of exploded view drawings, which depicted various parts of rifles.
The Graphic Training Aid, called M16A1 Operation and Preventive Maintenance, explained the proper maintenance of an M16 rifle and was highly effective since it was targeted at the young infantry men and illustrated by the popular comic book artist, Will Eisner.