The Cendovian Chronicles: Book 1 by Mark Hennessy * Signed by Author * ARC. Condition is "Brand New". Shipped with USPS Media Mail. Advance Reader's Copy/Uncorrected Proof. Collectible item. An Advance Reader's Copy (ARC) is a paperback book published prior to the hardcover retail editions. These uncorrected proofs are published in very limited quantities. Many serious collectors consider ARCs/Uncorrected Proofs to be the true first edition. They're "not for sale" because they're intended solely for publicity and media reviews, making them rare and very collectible. ARCs may lack the final artwork, formatting, and binding of the finished product. The text of an advance edition may also differ slightly from the market book (the final version that is distributed for sale), because changes may be made after advance readers make comments or find errors in the manuscript.