This series was launched after John Byrne revamped the Superman character in 1986 in The Man of Steel limited series, introducing the post-Crisis on Infinite Earths version of the Superman character.
After that limited series, Action Comics returned to publication and Superman vol. 2, #1 was published. The original Superman series (volume 1) became The Adventures of Superman starting with issue #424. Superman vol. 2 continued publishing until April 2006 at which point DC restored The Adventures of Superman to its original title and canceled the second Superman series.
EHT Comics 