Here's a great book I came across recently.
"Ad Boy: Vintage Advertising with Character" is a collection of various ad characters that graced many consumer goods' packages during the
1950's,
60's and
70's. The vintage illustrations and designs are indeed a great resource for any illustrator, graphic designer, advertising enthusiast and/or nostalgia buff.

The book was put together by
Warren Dotz:
a pop culture historian, collector, designer and author of eight advertising art books, and
Masud Husain:
a graphic designer, branding specialist and avid collector of American advertising ephemera.

For more great vintage illustration by these creative people, visit their blog here:
http://adboyworld.blogspot.com/Here's another nice review of Ad Boy at
Illustration Mundo.com :
http://www.illustrationmundo.com/wp/1294If you are interested in
retro illustration and
nostalgia artwork, you can pick up a copy at a local book retailer or visit this link to order online:
http://www.randomhouse.com/catalog/display.pperl?isbn=9781580089845