Skilman Introduction to Morse Code Developed by Dr. Jessica Parks, an expert in memory and cognition with a doctoral degree in experimental psychology, this course will guide you step-by-step to mastery of Morse code. Doctor Parks draws on long-standing research and scientifically validated principles to give you every advantage as you learn the letters, numbers, punctuation, and pro-signs that you will need to communicate using Morse code. This audio learning course includes six compact audio discs and booklet. List $54.99. Order #4164 ...... $37.98