Contains extensive new material from the DLCs for all three games - including the award-winning 'Lair of the Shadow Broker' from Mass Effect 2 and the fan-favorite 'Citadel' from Mass Effect 3. Experience the evolution of the aliens, planets, ships, and technology that define this iconic science fiction universe, as the developers who brought BioWare's masterpiece to life take you from the earliest design sketches through to the meticulous final renders. Brimming with concept art and commentary, this expanded edition is the ultimate companion to one of the greatest series in the history of gaming!