[1] Limited-edition books published by Delirium were reputed to sell out quickly, making their publications highly collectable.
[4] In 2005, Delirium Books won the Bram Stoker Award for Excellence in Specialty Press Publishing, presented by the Horror Writers Association (HWA).
Delirium's Hardcover Line features first-edition titles produced in limited editions with full-color dust jackets.
At the end of each year, Delirium offers custom-made slipcases to house the entire volume of books.
Delirium Books Exclusive Series (known as the X-series) are extremely limited-edition hardcovers that are only sold in preorder, within a reservation period of 1–3 months.