The artwork collection contains posters of all types of aviation related posters. Most of my favorites are the illustrated advertisements for air mail corporations or for air/balloon shows. The detail included in these posters is often amazing, many contains numerous details int he backgrounds that are only noticed after taking a good look at them. The 70's and 80's advertisements for traveling seem so much less well thought out then the illustrated adverts. Most are simply a generic postcard picture with the name of the destination and an airline logo.
There is also a decent amount of wartime ads in the collection. Many are promoting the US air force in attempts to gain new recruits. There are also some posters for civilians during war time. There are a good number of Chinese informational posters on how to survive and defend against air attacks. Many of these posters also contain graphs and charts giving information on different nations air forces and the damage that different size and types of bombs can inflict. These posters are as creepy as they are interesting. Check out the full collection here.