Pagination is used for splitting up content or data into several pages, with a control for navigating to the next or previous page.
Generally, Pagination is used if there are more than 25 items displayed in one view. The default number displayed will vary depending on the context.
Identify the current page
Clearly identify which page the user is on my displaying the current page number. By providing context into how many pages there are in total (eg. 1 of 4 pages), you can help provide clarity around the data displayed.