Characteristics
An ongoing series is traditionally published on a fixed schedule, typically monthly or bimonthly but many factors can cause an issue to be published late. In the past, the schedule was often maintained with the use of fill-in issues (usually by a different creative team, sometimes hurting quality), but increasingly the practice has been to simply delay publication. An ongoing "might run for decades and hundreds of issues or be canceled after only a handful of issues". When an ongoing series ceases to be published because the story has ended, it may be called "finished". If it ceases to be published because of low sales, editorial decisions, publisher bankruptcy, or other reasons, it is "cancelled". An ending might be written for the last issues of a cancelled series, or the series may simply disappear without warning and never return. If a series ceases to be published, but may be published again, it is called "on hiatus". Many series are placed "on hiatus" but do not return even after several years. For series that are creator owned, the copyright holder has the option of approaching other publishers to see if they would be open to resuming the title under their imprint. For instance, '' Usagi Yojimbo'' has had four consecutive publishers.Examples
Examples of ongoing series
* '' Action Comics''; "a series that has been published nearly continuously since 1938". * '' Detective Comics''; the first volume was published from 1937 to 2011 and then l