Before the graphic novel market really existed, Heavy Metal was making an attempt to support publishers like Baronet, who had teamed up with popular comic book creators and popular authors to produce limited edition hardcover editions. In addition to running ads for these works, Heavy Metal has also been running excerpts, giving their readers a glimpse at what the final product will look like.

(Heavy Metal issue #20, November 1978 – Page 14 Baronet Publishing Ad)