Walter Rybek's recently released book, Re-Solving the Economic Puzzle, argues a flaw in America's economic system explains why in a country of such wealth, there's still people entrenched in poverty, homelessness, and joblessness. The founder and director of the Center for Public Dialogue discusses and and signs his book at Busboys and Poets/5th&K. 6:30 p.m. Free.

MUSIC

SOLD OUT!! Wild Flag at 9:30 Club and Of Monsters and Men at Black Cat.

Boheme features Cassidy, the former lead singer of Antigone Rising, at Iota. With Laura Tsaggaris. 8:30 p.m. $12.

Pro Musica Hebraica: Marc-Andre Hamelin, The Enigma of Paris: Charles-Valentin Alkan, Frederic Chopin, and the French-Jewish Romance at the Kennedy Center. 7:30 p.m. $38.