The Practically Complete Guide to Dragons will offer new lore for dragons and numerous examples of the iconic creatures to be incorporated into D&D campaigns. The book is written as a narration by fictional character Sindri Sundercatch, who describes himself as "the greatest kender wizard who ever lived." To that end, the sourcebook will have a "childlike perspective and a Dragonlance perspective" according to a Wizards of the Coast representative. This dragon-filled sourcebook replaces and expands upon A Practical Guide to Dragons, A Practical Guide to Dragon Riding, and A Practical Guide to Dragon Magic, all rolled up into one book.