• I am a longtime fan and user of digitalfire. I have learned so much by reading the information you have published; I’ve always been so grateful to have it to read.

• Thanks for your amazing resources at digital fire. They have been invaluable in understanding clay, as I’m getting started with ceramics. Your emphasis to focus on the chemistry has made the art of ceramic very accessible indeed.

• Am learning to use Insight, love the articles in the reference database. Thank you for everything you have done and are doing.

• 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.

• Thanks for this and for the incredibly useful information on your sites.