Billboard calls Battle Studies "the best and most adventurous of (Mayer's) four studio albums." Our matching folio features all 11 tunes: All We Ever Do Is Say Goodbye * Assassin * Cross Road Blues (Crossroads) * Do You Know Me * Edge of Desire * Friends, Lovers or Nothing * Half of My Heart * Heartbreak Warfare * Perfectly Lonely * War of My Life * and Who Says, plus notes on the making of the record.