Supergirl
DC Comics.
Supergirl Archives 1 (Superman 123, Action Comics 252-269; w Jerry
Siegel, Otto Binder; a Stan Kaye, Dick Sprang, Jim Mooney, Al Plastino).
[From DC Comics: The Silver Age of comics had begun, and the concept
of costumed superheroes was once again gaining mass appeal. As demand for
the colorful heroes grew in the late 1950s, DC Comics reacted by revamping
many of their greatest heroes from the Golden Age - heroes like the Flash,
Green Lantern, and the JLA. But they also expanded their current superhero
franchises, with one of the most important being the Superman titles, headed
by editor Mort Weisinger. The Man of Steel was already featured in several
DC titles - Superman, Action Comics, World's Finest (teamed with Batman),
and Adventure Comics (featuring his adolescent exploits as Superboy). Under
Weisinger, however, the Superman mythos underwent a sustained expansion,
with the introduction of the Phantom Zone, multi-colored versions of Kryptonite,
and Krypto the super-dog (as well as the rest of the super-pets). But Weisinger's
most notable contribution to the "Superman Family" was the introduction
of Superman's long-lost cousin, Kara Zor-El - Supergirl! Supergirl exploded
into Superman's life in Action Comics #252. Although not the first time
Superman had encountered a "Supergirl" - see the first adventure
in this volume from Superman #123 - the introduction of Kara would become
an important milestone in the Man of Steel's mythology. Escaping from the
doomed city of Argo, Krypton's last surviving remnant, Kara is sent to Earth
in a rocket to be reunited with Superman, and under his guidance is trained
to become one of Earth's greatest heroes.. Supergirl's early adventures,
charmingly crafted by writer Otto Binder, had Supergirl's actions always
hidden from society, giving her the status of "Superman's Secret Weapon."
But inevitably Supergirl became a public figure, even breaking the bonds
of the 20th century to fight alongside the Legion of Super-Heroes. In later
years, with the coming of the universe-altering Crisis on Infinite Earths,
Kara met a hero's fate, dying while saving her last family member, Superman.
Supergirl's death was a most emotional event for professionals and fans
alike. But let's not talk about the end. This is the beginning. So let us
return to a simpler time, as a 15-year-old girl learns to fly, and learns
to be a hero.] 
Supergirl Archives 2 (Action Comics 269-285; w Jerry Siegel, Otto
Binder; a Jim Mooney, Wayne Boring, Curt Swan). [From
DC Comics: Among the stories included here are the adoption and world
debut of Supergirl, her first romance, her first encounter with the Legion
of Super-Heroes, a run-in with the Superman Emergency Squad, an adventure
revolving around red Kryptonite, and appearances by Streaky the Super Cat!]
Showcase Presents: Supergirl 1 (Superman 123, 139, 140, 144, Jimmy Olsen 40, 44, 46, 51, 52, Lois Lane 314, Action Comics 252-281; w Jerry Siegel, Otto Binder, Robert Bernstein, et al.; a Jim Mooney, Al Plastino, Curt Swan, Dick Sprang, Kurt Schaffenberger, Wayne Boring, et al.). 
Supergirl (Showcase '96 12, Supergirl 1-9; w Peter David; a Karl
Story, Gary Frank, Cam Smith, Terry Dodson). [From DC
Comics: Supergirl. The Girl of Steel. The Maid of Might. A heroine who
threw herself into the role because she knew nothing else. They told her
to get a life. They just didn't say whose.] 
Many Happy Returns (75-80; w Peter David; a Ed Benes, Alex Lei).
[From DC Comics: Linda Danver's long personal journeys have just
ended. After many adventures dealing with Earth Angels, Chaos Streams and
demons, Linda can now claim to be the one and only Supergirl… or can
she? When a spacecraft crashed down outside Leesburg, Supergirl races over
to the destroyed craft to look for survivors, and finds... Supergirl?!?
Not a hoax. Not an imaginary story. This is Kara Zor-El - the Silver Age
Supergirl from the planet Krypton who is cousin to the Man of Steel. But
how can this be? And what does this mean for Linda? Superman, Superboy and
the Spectre guest-star in one of Supergirl's most unpredictable adventures
- a rollicking roller coaster ride that climaxes in a shocking conclusion
you won't soon forget.] 
Power (1-5, Superman/Batman 19; w Jeph Loeb; a Ian Churchill). [From DC Comics: The adventures of Superman's cousin from Krypton, the one and only Kara Zor-el! Spinning out of the hit Superman/Batman: Supergirl, this volume tells the story of Supergirl's whirlwind tour of the DCU! Along the way, she encounters the JSA, the Teen Titans, the Outsiders, and the JLA -- but will she be an ally or enemy to the world's heroes?] Superman/Batman 19 was also reprinted as Supergirl 0. 
Candor (6-9, Superman/Batman 27, Superman 223, JLA 122-123; w Greg Rucka, Joe Kelly, Mark Verheiden; a Ian Churchill, Ed Benes, Kevin Maguire). [From DC Comics: The saga of Kara Zor-El deepens! Following the Earth-shattering events of INFINITE CRISIS, Kara finds herself trapped in the Kryptonian city of Kandor.] 
Identity (10-19, Infinite Holiday Special 1; w Joe Kelly, Jimmy Palmiotti, Justin Gray; a Ian Churchill, Joe Benitez, Amanda Conner). [From DC Comics: Supergirl finally adopts a secret identity, joins the super-team the Outsiders, battles Batgirl, and begins a relationship with her new boyfriend, Power Boy!] 
Wings (Elseworlds OGN; w J. M. DeMatteis; a Jamie Tolagson).
[From DC Comics: Linda, a human so self-willed… so drawn to
darkness… that her soul stands on the brink of damnation. Matrix, it
is her purpose to lift rebels up… to bring them to the Light. If only
she didn't HATE them so.] 