For the last couple months, DC Comics has been releasing a free—that's right, FREE—digital comic book issue featuring a sample chapter from one of our 25 Essential Graphic Novels as well as sample pages from the 2014 Essentials catalog. Sadly, this week marks the LAST and FINAL week of this super awesome promotion, but in this final week, we're taking you to a whole new world—the world of Superman: Earth One!