As a fan of Osamu Tezuka's Astroboy, I couldn't help but love these photos by Hiroshi Araki. It's not Tezuka's artwork or even Astroboy's personality that makes the manga so fascinating. It's the fact that Tezuka managed to create an empathy for entire society of self-aware robotic beings... beings enslaved by humans.
Though Tezuka's inspiration was Disney, his children's stories were usually more forcefully provoking than his American counterpart. Though it was Walt Disney who said "don't ever talk down to a child," it was Osamu Tezuka who lived up to this statement by never shying away from topics like war, death, loss and then even some of the greater questions. What are we? Who are we? What is consciousness?

A few years back a film adaptation was made of Tezuka's Metropolis manga. It actually share very little in common with the manga but it is great looking. And it does display Tezuka's enslaved society of robots. I recommend it, especially as an introduction to Astroboy.