Expert Guitar Instructor Mark John Sternal has authored over 40 best selling guitar and bass instructional titles. Mark began teaching his trademark method to private students in 1991. He was only 17, with one year left of high school before he would attend Richard Daley College in Chicago. By 1994, Mark had relocated to Florida and with him came the manuscript for his first book, GUITAR: Total Scales Techniques and Applications. Fueled by glowing user feedback and testimonials from thousands of satisfied customers, Mark's growing number of titles awarded him national