[2][5][6] Much of his art collection was assembled through inexpensive purchases or for free, as gifts from artists or their relatives.
He graduated from Tallinn Evening High School No.
His art collection, which initially included 300 works—mainly etchings by Western European and Russian painters of the 19th century, as well as paintings, sculptures, and graphics by Estonian artists (August Weizenberg, Kristjan Raud, Eduard Wiiralt, Paul Burman, Aleksander Vardi, and Ferdi Sannamees [et])—was founded by his mother Selma Lepp (1911–1977).
The collection also includes watercolors, drawings, and sketches.
Large collections by several individual artists in Lepp's collection include the works of Aleksander Vardi, Jüri Arrak, Valdur Ohakas, Olav Maran, Olga Terri [et], Vive Tolli [et], Peeter Mudist, Richard Kaljo [et], Felix Randel [et], Johannes Uiga [et], Johannes Saal [et], Elmar Kits, and Eduard Ole.