Periodicals are also known as Serials.

### Why this is right A **serial** is a publication released in separate parts over time, with no set end planned. A **periodical** is published repeatedly at regular intervals, such as weekly or monthly, so it fits the broader category of serial publications. ### The concept Periodicals include magazines, newspapers, and scholarly journals. Each new issue adds to the continuing publication, usually under the same title, and is identified by a date, volume, or issue number. The terms are often used interchangeably, though **serial** can be broader: it also includes continuing publications that do not appear at regular intervals, such as some annual reports or conference proceedings. ### Terms - **Periodical**: A publication issued repeatedly at regular intervals, such as a monthly magazine. - **Serial**: A publication released in successive parts over time, with no predetermined end. - **Issue**: One individual instalment of a periodical or other serial publication. ### Remember A periodical is a serial, but a serial is not always a periodical.