Businesses in the other publishing category produce and distribute printed or digital publications that do not fit more specific publishing classifications. Their work may include books, reference materials, directories, catalogues, maps, calendars, reports and similar content. Some focus on developing original material, while others edit, design and prepare work supplied by authors, organisations or businesses. Services can include commissioning and editing, proofreading, typesetting, page layout, illustration, cover design and preparing files for print or online release. Publishers may arrange printing, manage digital editions, sell publications through retailers or online platforms, and handle rights and permissions. The category can also cover specialist or niche publications, including material issued periodically, depending on the nature of the publisher's main activity.