Complex sentence: Issues of the "Catalog"-concerned with "access to tools"-were put together by Brand, his wife, friends and associates, and were published regularly until 1972, and sporadically until 1998.
Split into simpler sentences: Issues of the "Catalog"-concerned with "access to tools"-were put together by Brand, his wife, friends and associates. They were published regularly until 1972, and sporadically until 1998.