On Dec. 7, “Introduction to Essential Oils” will be held at the Northern Door County YMCA in Fish Creek at 10 am as part of the Wisdom Wednesday series. Learn about what essential oils are, how they work, if they’re safe for kids and pets, etc. This class is a beginner class for all ages. The class is free, and the ITOVI scan will be available for $5. Pre-registration is recommended by contacting Laura Lee Lotto at 920.265.0288.