Hi Nicole Lopez. You may find the guidebook on the program's homepage: https://grokker.com/cooking/nutrition-and-healthy-eating/program/21-day-nutrition-reboot/5a1c8d5075c30566d6921591. In addition, here's a direct link to it: https://grokker-static.freetls.fastly.net/pdf/21_Day_Nutrition_3

I hope you enjoy this program by Chris Mohr. He has a lot of very valuable tips!