The How to Supervise & Lead a Team leadership seminar, with special guest and best-selling author of six books Glenn Shepard, will take place at the Gillette College Presentation Hall from 8:30 a.m. until noon. The general public is welcome to attend. Tickets range from $129 to $149, with Chamber members and groups of three or more receiving a discounted price. For more information, visit gillettechamber.com.