Publications Cacti - Biology and Uses. Edited by Park S. Nobel, and contributed to by a great many prominent growers, botanists and others. This seminal work running to 281 pages was published in 2003 by the University of California Press. IUCN Action Plan: Cacti & Succulents. The status survey and conservation action plan, compiled by Sara Oldfield on behalf of the IUCN / SSC Cactus and Succulent Specialist Group. Downloadable as pdf. Kakteen und Andere Sukkulenten. A downloadable archive of the journal of the Deutsche Kakteen-Gesellschaft, Kakteen und Andere Sukkulenten. Issues available run from 1949 until 2010 and are in pdf format. Haworthia Revisited. Bruce Bayer's revision of the genus Haworthia, now available here in full, with all illustrations. Cactus & Succulent Review. A free quarterly review in pdf format. Back issues are also available. Alsterworthia International. The journal of plants of the Asphodelaceae. Back-issues of the journal are available free online in pdf format, hosted by The Haworthia Society. Cactus Explorers Club. A free on-line journal available as a pdf download from the Cactus Explorers Club. The Cactus and Succulent Digital Library. A wide selection of free books and journals dedicated to cacti and other succulents, in pdf format. These books and catalogs are in the public domain or the authors have given the site permission to reproduce their work. Websites Horticulture Magazine. A magazine on a wide range of horticultural subjects but with a Cactus & Succulents section. 12 12 Do you know of a website or online publication not listed here? Or a broken link? Let us know.