Sonic the Hedgehog Deluxe Encyclo-speed-ia Launches For the 30th Anniversary In September of last year, Sega and Dark Horse Books announced the Sonic the Hedgehog Encyclo-speed-ia in celebration of the character's 30th anniversary. The book is described as a deep dive into Sonic lore and all of the games released from the Sega Genesis to the present day. At the time, only a standard version of the book was announced, but it looks as though a Deluxe Edition is also on the way. That standard Sonic the Hedgehog Encyclo-speed-ia is available to pre-order here on Amazon in hardcover for $42.99. The Deluxe Edition is available to pre-order here on Amazon for $79.99. The release date for both books is set for November 23rd. Note that you won't be charged until the books ship, and you'll automatically get any discounts that occur during the pre-order period.