I highly recommend the Mastery of Selling Skills course to all levels of sales people, new and experienced. MSS is truly a great course to learn and practice your presentation and negotiation skills from start to finish. For me, the course honed and accelerated my skill development in meeting prep, delivery and follow up. In the course we learned how to put together fact based customer centered presentations, presentation delivery, and negotiations. In true Delta Associates form, Jammie, the instructor, broke the skills into bite-size pieces that we learned then practiced, practiced, practiced. Jammie is a great instructor. She kept the energy high and the course material relevant and interesting. I utilize the learnings from the MSS course everyday!