Reddit mentions of Astro Boy, Vol. 1

what the best way to read astroboy? should i get these dark horse omnibuses or shoulid i track down used copies of the orginal volumes

I think a good one for her would be Osamu Tezuka's Astro Boy, which is child-friendly, absolutely fantastic, and is a pioneering manga that influenced many of the series that followed it (ex. Dragon Ball). It has a lot of action and fighting but is also tempered with a warmth and humanism (even though the main character is a robot). Osamu's art style is great and really appealling: he draws his characters in a Disney-esque style (large eyes, cute faces) and is great at imparting emotional expressiveness, is good at conveying action and has a gift for page layout, and his art has a sense of momentum and dynamism that rivals many live-action films. He's also a good manga artist to start with because his style and technique influenced so many authors and series that came afterward (Cyborg 009, Dragon Ball). Dark Horse has published all 23 volumes of it, and although it's out of print you can get used copies of it for a good price. It doesn't really matter which particular volume you get, since each Astro Boy story is generally self-contained and can be understood by reading it in an of itself. (I should also note that the tankoban- i.e. collected volume- release of the series presents the stories in Tezuka's preferred reading order rather than chronologically.)

Here's a link to Vol. 1 of the Dark Horse edition: https://www.amazon.com/Astro-Boy-Vol-Osamu-Tezuka/dp/1569716765/ref=olp_product_details?_encoding=UTF8&me=&qid=1573781433&sr=8-2