at the time, i had found a handful of books with pages printed upside down. category senior living , health , united states , and 10 more. they are a great size to make them portable. i am really starting to step into my greatest version and be the person i was meant to become. while they do work well together, it's not that hard to come across these shades individually. if you want to play an instrument – play in a five-minute block of time when you can, you will notice the difference in your ability. more on that as we progress! 