• Tony, I owe you a tremendous debt of gratitude. In art school, I got a thorough grounding in ceramics -- in a macro sense. Micro, not so much. You, then, are the professor who is helping me to complete my education, via Digitalfire -- truly a Phenominal piece of work.

• This site is an incredible resource and I just want to thank you for it. It fills in so many gaps from my studio art ceramics education and has made me more confident in the pieces I sell. I reference it almost weekly and have recommended it to so many other potters. The ceramics world is better off learning and applying this wisdom and I'm so happy to see someone teach so technically and seriously about the material. Culturally, there is a casualness in the pottery world (whether in community studios or school art rooms) that is borderline negligent in some ceramic circles and I just really appreciate when I see someone pursuing excellence and technical mastery of the material. Because it really matters!

• I have mostly used store bought glazes and fooled around some with stains. I have never approached anything scientifically. Your website seems wonderful. Seems that I could spend a few years with what you have shared. I will start with one of the base recipes and let the fun begin.

• I am a high school senior AP ceramics student investigating glaze chemistry and rheology. I spend a great deal of my free time browsing the digitalfire reference library, and would have never developed the passion I have for ceramics chemistry had I not come across it.

• I must say you have so so much good information and with examples that it is nothing less than outstanding. I've added another year to my account. Thank you!