 At that time he and Vilma were also extremely active in publicizing Esperanto and his bookselling business had begun to take too much of his time, so he sold his book inventory to the KEA.Though he did not always agree with decisions of the association, he remained a passionate collaborator of the KEA for the rest of his life and was elected an honorary member in 1995.He also published children's books "Ni legas bildojn" ("We read pictures," 1957) and "Alko kaj Suna" ("Alko and Suna," 1958), pamphlets on Unitarianism (1958), various books in and about Esperanto and several of his wife's books (such as the textbook "En novan mondon" ("Into the new world," 1984).