This document describes an introductory training course on unit operations fundamentals and troubleshooting. The course aims to help processing plant engineers and operators understand key concepts to improve safety, reliability, reduce costs and increase profits. It is taught over 3 to 5 days by a senior instructor and covers topics like mass transfer, fluid dynamics, heat transfer, reactions, and case studies. Attendees include operations and maintenance personnel who want to broaden their skills and apply concepts to optimize their facilities. The goal is for participants to leave with strategies to troubleshoot issues and increase operational excellence.