1986 - Anatomy of a Cover - Legends #2

1980 - Superman by John Byrne

1993 - Anatomy of a Cover - Legends TPB

1980 - Batman by John Byrne

1988 - Superman's 50th Anniversary Time Magazine Cover

From the ByrneRobotics messages board in 2004:

network54.com/Forum/248951/thread/1076353390/last-1076377866/Man+out+of+Time-+some+magazine+cover+questions+for+JB

"I don't recall what I was paid for that TIME cover. I have done the best I can to blot most of that experience out of my mind. Just about everything that could have gone wrong went wrong -- including the cover been featured later than it was supposed to be an so blowing all the hype. 

"The worst part was that the art director at TIME decided he knew more about what comics look and read like than, you know, people who do comics for a living, and so added that godwaful word balloon to the cover, which not only has some of the worst lettering I have ever seen, but also has Superman referring to his "supernatural" powers.

"FEH"

1986 - Legends Ad

Legends #6 homage by Fred Hembeck!

And here's the original by Byrne:

1988 - Anatomy of a Cover - Adventures of Superman #442

Batman Commission by John Byrne

Dr. Doom and Catwoman Commissions by John Byrne

1987 - John Byrne's Legion of Super-Heroes

From Superman #8.

I would have loved to have had John Byrne take over the reins of 

the Legion of Super-Heroes in the late 1980s

1980 - House Ad for The Untold Legend of the Batman

Merry Christmas!

1987 - Anatomy of a Cover - The Man of Steel #1

Here's the Special Collector's Edition that was exclusive to the direct market.

1987 - Legends #6 - Jim Shooter Byrned

http://goodcomics.comicbookresources.com/2013/10/27/meta-messages-john-byrne-burns-jim-shooter/

Len Wein, John Ostrander, and John Byrne poke a bit of fun at Mr. Shooter, disguising him as the villain Sunspot and the not-so-subtle references to the New Universe.

1988 - Anatomy of a Cover - The World of Krypton #2

Firestorm by John Byrne

1988 - What The -- ?! #2 by John Byrne

Superbman Vs. The Fantastical Four by John Byrne. Byrne has a bit of fun with this cross-company mashup and parody.

1978 - Deadman by John Byrne

DC Comics December 2013 Solicitations - 1980s Goodness

GREEN LANTERN: SECTOR 2814 VOL. 3 TP
Written by STEVE ENGLEHART
Art by JOE STATON and others
Cover by WALTER SIMONSON
On sale JANUARY 15 • 200 pg, FC, $16.99 US
In this new collection of GREEN LANTERN #194-200, John Stewart clashes with Guy Gardner to see who will be the Green Lantern of Earth. And while Stewart battles Harbinger during the Crisis on Infinite Earths, Gardner recruits enemies of the Green Lantern Corps to stand against an evil that could destroy the entire universe—including The Shark, Hector Hammond, Sonar, Goldface and more!

THE DEMON: FROM THE DARKNESS TP
Written by MATT WAGNER
Art by MATT WAGNER and ART NICHOLS
Cover by MATT WAGNER
On sale JANUARY 15• 128 pg, FC, $14.99 US
Jason Blood travels to Cornwall to find the spirit of Merlin and lift the curse that binds him to Etrigan, The Demon. But unraveling a centuries old curse is anything but easy, and Blood learns more about his mystical alter ego than he could have imagined. Collects the 4-issue miniseries from 1987 and issue #22 of The Demon’s monthly series.

SUPERMAN: THE MAN OF STEEL VOL. 8 TP
Written by PAUL KUPPERBERG, JOHN BYRNE and ROGER STERN
Art by JOHN BYRNE, TY TEMPLETON, GEORGE PEREZ, MIKE MIGNOLA, JERRY ORDWAY and others
Cover by JOHN BYRNE
On sale DECEMBER 31 • 240 pg, FC, $16.99 US
Superman’s 1980s adventures continue with the introduction of Checkmate, plus appearances by Wonder Woman, Man-Bat and others. Collects ACTION COMICS #598-600, SUPERMAN #16-18 and ADVENTURES OF SUPERMAN #439-440.