My background includes degrees in English, psychology and counseling, together with study of western and eastern history and spiritual beliefs. I have used practical genetics in cat breeding and le...view moreMy background includes degrees in English, psychology and counseling, together with study of western and eastern history and spiritual beliefs. I have used practical genetics in cat breeding and learned enough about electronics to earn my General Class amateur radio license. My main career has been as a computer software engineer. All of these fields apply to this book.view less