Navigate to the template you used to create the series you're wanting to delete. Click into the Associate Work tab at the top of the template screen and make sure you're on the 'By Series' view.
Use the square check mark boxes to the left hand side of table to select the series you're wanting to delete
After you've made your selections, click the delete button in the upper right hand corner and follow the prompts in the pop up box that appears to delete those series permanently.
