Superman/Batman is a monthly comic book series published by DC Comics that features the publisher's two most popular superheroes: Superman and Batman. Superman/Batman premiered in August 2003, an update of the previous series, World's Finest Comics, in which Superman and Batman regularly joined forces. Superman/Batman explores the camaraderie, antagonism, and friendship between its title characters. Jeph Loeb, the series' first writer, introduced a dual-narrator technique to present the characters' often opposing viewpoints and estimations of each other, which subsequent series writers have maintained. Before the 1985 limited series Crisis on Infinite Earths, the two iconic characters were depicted as the best of friends. Frank Miller's landmark series The Dark Knight Returns was the first DC story that depicts the heroes at odds with each other, as opposed to Pre-Crisis incarnations. This dynamic became DC Universe canon with John Byrne's The Man of Steel, a Superman reboot published in 1986. After the first 13 issues, most of the story arcs were independent and self-contained from the ongoing or crossover storylines in the other Batman and Superman comic titles. Superman/Batman #26, Loeb's final issue, features a story plotted by Loeb's son, Sam Loeb, who wrote it before his death from cancer in 2005 at the age of 17. Twenty-six writers and artists who knew Sam worked on the issue, donating their fees and royalties for the issue to the Sam Loeb College Scholarship Fund. As part of The New 52, a series titled Batman/Superman was released from 2013 to 2016. A second Batman/Superman series was released in August 2019, with issue #16 as part of DC's Infinite Frontier. A new ongoing series by Mark Waid titled Batman/Superman: World's Finest was released in March 2022. Superman/Batman (2003-2011) Jeph Loeb Loeb, who wrote Superman for two years before the launch of the title, wrote the book for the first two years of its publication. Unlike later writers, Loeb's work on the book lasted for several storylines, which were interconnected. In the first story arc, "The World's Finest", also referred to as "Public Enemies" (issues #1–6, illustrated by Ed McGuinness), then-U.S. President Lex Luthor declares Superman and Batman enemies of the state, claiming that a Kryptonite asteroid headed for Earth is connected to an evil plot by Superman. Luthor offers a $1,000,000,000 bounty, which encourages both supervillains and superheroes to attack. Superman almost kills Lex, with Batman standing aside. Superman changes his mind at the