• After more than 50 years making pots, selling and teaching I’m done. Worn to a frazzle. Just wanted to let you know that over the years I’ve relied on you for information on materials and glazes. I’ve never been disappointed, and I owe you a big thanks. I’m over 80 and I need to slow down. I’ll continue making pottery, but not so much. I’ve been at it since 1968 (phew!). I thank you for your advice and especially for your website and its cascading information. Always useful, always on target. I’m only sad that I was not able to meet you in person. Peace, love and happiness.

• In the 4 decades or so of my academic career (I taught ceramics as a major of the Fine Art degree at the University of Kwa-Zulu-Natal, South Africa), glaze chemistry was one of my favourite subjects, though it was too 'scientific' for most students! Your Insight-Live programme is really super! Thanks once again for all you are doing to keep the discipline alive and kicking.

• Thank you so much for the fantastic info and knowledge you provide for us potters on your page!

• And I want to add - you are doing a magnificent job with your webpage. Just unbelievable amount of work and information you put there. I have learned a lot from your webpage. Thank you.

• I love insight BTW. I have been showing everyone at Alfred how easy it is to do UMF while comparing two recipes next to each other. The up and down toggles make it easy to understand cause and effect. They are also impressed how easily i can switch between my computer and smartphone and maintain all my work and recipes. BTW I just love insight. It has changed my experience and knowledge of glazes drastically.