Peter Defreitas has been an experienced and highly respected teacher and tutor of Physics at both CSEC® and CAPE® levels for over 40 years. Recently retired from the post of Head of Physics at St Winifred’s School, Barbados, he now focuses his time on his ever-expanding tutorial classes and his growing reputation as a writer for physics in the Caribbean. He has supported thousands of students through their CSEC® and CAPE® examinations.