it is free of harsh chemicals, so no concerns about a distracting chemical smell while you practice. the crown of your head should hover above the floor. so the first advantage is pretty obvious. more sets to come, with more amazing photographers! if what you are doing is not working, take matters in your own hands. for more information on any of our programs and services, please feel free to contact us. that reminds me, i once committed myself to learning something new every year. probably because it’s not so trend-driven. everything you need in one book! looking forward to hearing from everybody! 