"Monster Manual IV", published July 2006, was designed by Gwendolyn F.M. Kestrel, Jennifer Clarke Wilkes, Matthew Sernett, Eric Cagle, Andrew Finch, Christopher Lindsay, Kolja Raven Liquette, Chris Sims, Owen K.C. Stephens, Travis Stout, JD Wiker, and Skip Williams. This book was also published in the v3.5 format and used the new stat block format that was introduced in the "Dungeon Master's Guide II". "Monster Manual IV" contained fewer actual monsters than Monster Manual II and III, but had sample lairs and encounters for them, gave stats for classes and templates applied to old creatures, and full page maps. The book also ties into the "Year of the Dragons" theme that Wizards of the Coast planned out for 2006 with the Spawn of Tiamat, yet contains no new monsters that are considered true dragons.