Cathryn Lavery traces the evolution of Batman (or at least his bat-shaped marketing) with this poster, taking us from 1940's Batman & Robin: The Boy Wonder to the shattered bat logo from The Dark Knight Rises. She's offering limited edition prints of the poster in a variety of sizes over at Calm the Ham.
Batman: An Illustrated Evolution [Calm the Ham via Design You Trust]
DISCUSSION
There's no consistency in these as to what they are. Some of them are the cover/show logo, some are what he wears on his suit.
The Arkham Asylum/City ones and the Nolan ones are my favorites by a mile.