"The piano ain't got no wrong notes!" So ranted Thelonious Sphere Monk, who proved his point every time he sat down at the keyboard. His angular melodies and dissonant harmonies shook the jazz world to its foundations, ushering in the birth of "bebop" and establishing Monk as one of America's greatest composers. Yet throughout much of his life, his musical contribution took a backseat to tales of his reputed behavior. Writers tended to obsess over Monk's hats or his proclivity to dance on stage. To his fans, he was the ultimate hipster; to his detractors, he was temperamental, eccentric, taciturn, or childlike. But these labels tell us little about the man or his music. In the first book on Thelonious Monk based on exclusive access to the Monk family papers and private recordings, as well as on a decade of prodigious research, prize-winning historian Robin D. G. Kelley brings to light a startlingly different Thelonious Monk -- witty, intelligent, generous, politically engaged, brutally honest, and a devoted father and husband. Indeed, Thelonious Monk is essentially a love story. It is a story of familial love, beginning with Monk's enslaved ancestors from whom Thelonious inherited an appreciation for community, freedom, and black traditions of sacred and secular song. It is about a doting mother who scrubbed floors to pay for piano lessons and encouraged her son to follow his dream. It is the story of romance, from Monk's initial heartbreaks to his lifelong commitment to his muse, the extraordinary Nellie Monk. And it is about his unique friendship with the Baroness Nica de Koenigswarter, a scion of the famous Rothschild family whose relationship with Monk and other jazz musicians has long been the subject of speculation and rumor. Nellie, Nica, and various friends and family sustained Monk during the long periods of joblessness, bipolar episodes, incarceration, health crises, and other tragic and difficult moments. Above all, Thelonious Monk is the gripping saga of an artist's struggle to "make it" without compromising his musical vision. It is a story that, like its subject, reflects the tidal ebbs and flows of American history in the twentieth century. Elegantly written and rich with humor and pathos, Thelonious Monk is the definitive work on modern jazz's most original composer.