Attorney Morris Wolff, author of "Whatever Happened to Raoul Wallenberg," will speak at the Mattapoisett Free Public Library at 6:30 p.m. on Tuesday, Aug. 7.

Wolff's book, subtitled "The True Story of Holocaust Hero Raoul Wallenberg and the author's efforts to rescue him from Soviet Union imprisonment," was published in 2012.  It is the story of Wlff's 27 years of pro bono legal work, begun in 1983, to free Wallenberg, imprisoned for 39 years in Moscow.

Wolff, a trial lawyer and public prosecutor, also taught at Kings College in London and at the University of Pennsylvania in Philadelphia, where he practiced law for 35 years. He is a graduate of Yale Law School.

Books will be available for purchase and signing at the lecture. The library is located at 7 Barstow St.