Good, could improve
I have noticed some discrepancies in the first couple chapters, mainly the one that bothered me so deeply was the scientific method isn’t clean in determining what conclusions can be drawn from the psychology of color theory studies. Another thing that would really kick it up a notch is having a separate list of printable pdf charts for all the individual lists (properties of trees, edible plants, indoor sot spot plants, etc.) would be an incredibly helpful study tool since memorizing those individually in unlikely and having the printed reference guide would be helpful ongoingly, even after certification has been granted. It wouldn’t be that difficult to design printable posters for your students and it would cost you a lot of money whereas is would be a great service and boon for us, definitely earning that last star.