David Slager has been a computer programmer for four decades, with a focus on Excel. He also was head of the computer department of a college for many years. He is currently a software manager. David has worked with spreadsheets since their introduction. As a consultant, he developed major e-learning training projects for agriculture and steel businesses and designed a simulation program that trained feed market managers to use analytics to improve their market position. He enjoys working with analytics and solving problems and has taught learners of all ages and levels. David holds an MS in Education, specializing in Instructional Media Development, a BA in Organizational Management, and an associate's degree in Accounting, as well as many certifications. Annette Slager has been involved in data management and employee training in the non-profit and higher education sectors. She has been responsible for coordinating donor stewardship events and processes, and in overseeing information entered into the donor/alumni data system. She has transitioned systems from manual accounting and processing to shared databases, and created learning manuals and training for employees. Annette has a bachelor's degree in English Literature and a post-baccalaureate certificate in Technical Writing.