Tzedakah and Ma'aser Kesafim, part 1, Primary Purposes

The shiur is based on:

Maaser Kesafim: Giving a Tenth to Charity 

by Cyril Domb (Editor),

O. Feuchtwanger (Contributor), G. Goldstein (Contributor), A. N. Homberger (Contributor), P. S. A. Rossdale (Contributor), Feldheim, 1982.

See https://www.amazon.com/Maaser-Kesafim-Giving-Tenth-Charity/dp/087306304X

Links to subsequent five shiurim in the series are posted in the comments here.