The Atom
DC Comics.
Atom Archives 1 (Showcase 34-36, The Atom 1-5; w Gardner Fox, Julie
Schwartz; a Gil Kane, Murphy Anderson, Mike Sekowsky). [From
DC Comics: Following the resounding success of the revival of The Flash,
Green Lantern, and the JLA, editor Julie Schwartz, the "architect of
the Silver Age," turned his attention to another of DC's then-fallow
Golden Age Heroes: The Atom. Like The Flash and Green Lantern, there had
been an original Golden Age incarnation of a character calling himself The
Atom. Although he was a long-lived character, he was frankly not much more
than a short tough guy with a not-particularly inspired costume. But, this
new Atom, now this was something really different! This guy really had some
powers; Ray Palmer, by constructing a device employing the beam of a white-dwarf
star, was able to shrink to any size - even microscopic - and vary his weight.
Under Schwartz's guidance, writer Gardner Fox delivered his signature plot-driven
sci-fi-influenced scripts, and the dynamic and slick art provided by the
team of Gil Kane and Murphy Anderson produced perhaps the finest-looking
book on the stands at the time. Now, readers new and old can enjoy the first
eight appearances of the "Tiny Titan" collected here in his first
Archive Edition!] 
Atom Archives 2 (6-13; w Gardner Fox; a Gil Kane, Murphy Anderson, Sid Greene). [From DC Comics: Volume 2 includes the Mighty Mite’s first team-up with Hawkman and Hawkgirl, the classic villainy of Dr. Light, the return of Chronos, an encounter with Edgar Allan Poe, and 10 more exciting adventures!] 
Showcase Presents: The Atom 1 (Showcase 34-36, The Atom 1-17; w Gardner Fox; a Gil Kane, Murphy Anderson,
Sid Greene). [From DC Comics: VFrom the Silver Age of Comics comes this collection of science-fiction tales starring Ray Palmer, The Atom! Included here are some of the Atom's greatest adventures.] 
Sword of the Atom (4-issue mini + 3-issue mini; w Jan Strnad; a Gil Kane, Pat Broderick, Dennis Janke). [From DC Comics: Collected for the first time in a single graphic novel! Sword of the Atom #1-4 and Sword of the Atom Special #1-3 take readers on a fantastic journey into the heart of a Central American jungle, where a race of 6-inch-tall aliens treats The Atom as their protector against titanic beasts and primeval sorcery!] 
1 My Life in Miniature (1-6; w Gail Simone; a John Byrne, Trevor Scott). [From DC Comics: Meet Ryan Choi — the young hotshot professor filling the empty slot on Ivy University's teaching staff…and who inadvertently fills the role as the all-new super-heroic Atom!] 
2 Future/Past (7-11; w Gail Simone; a Mike Norton, Eddy Barrows, Andy Owens, Trevor Scott). [From DC Comics: In this second Atom trade paperback, the tiny titan encounters a man with a strange connection to the mysterious Time Pool — and a dangerous connection to the deadly Linear Men. ] 