I bought both the physical and digital book. For those complaining about the Kindle version, you’re not doing it right. I work with the Kindle version at my office and using my unplugged Telecaster. I have my monitor resolution at its finest setting (tiny fonts). But I adjust my browser with either Command + or Ctrl + (MAC/PC). It’s easy to get to the size you need to read clearly.
That aside, I’ve played self-taught for 40-years. With this book, for the first time I’m learning to read music and know the music I’m playing.
This is an exceptional book, digital or print (tho, I would agree with comments that spiral bound print version would be an improvement).