R20 Rockman & Rockman X Official Complete Works (R20 ロックマン＆ロックマンＸ オフィシャルコンプリートワークス R20 Rockman & Rockman X Official Complete Works?) is an illustration book with 336 pages in A4 format containing images and informations of over 40 games from the Mega Man and Mega Man X series, that was released on March 25, 2008 in Japan for 3,360 Yen and in December 2009 as two separate books in North America: Mega Man Official Complete Works and Mega Man X Official Complete Works. The "R20" from the name refers to Rockman's 20th anniversary, which happened on December 2007.