Our Instructors


Adult Classes

Don Cox

I've been making handcrafted pots for over two decades. Skill and competence at the potter's wheel, in glazing, decoration, and firing were early goals and continue to be primary goals even today. My search now is about bringing these elements into a cohesive whole. Slowly, day-by-day, my work continues to evolve and progress. The daily, monthly, yearly, cycle of studio pottery is what sustains me as an artist.

Willi Eggerman

Willi Eggerman is a visiting instructor who also teaches at the Boulder Potter's Guild. Her career in ceramics began in 1986 and expanded into sculpture in the past decade. Willi studies painting and drawing and incorporates unique decorative techniques into her pieces. She teaches workshops and classes at her professional studio gallery, which you can also visit by appointment.


Chris Grandinetti

Chris has been a part-time pottery and ceramicist for 25 years in the Boulder / Denver area. Chris has worked with the City of Boulder’s Pottery Lab and the Potter’s Guild as a clay maker, glaze tech and pottery instructor for the past 15 years. Most recently, he has worked at the Pottery Lab as a teacher; he created a clay recycling program for the Pottery Lab that has been very successful.

Margaret Josey-Parker

Since graduating with an MFA from the University of Oregon, I have taught ceramics at many places in Colorado and other western states. I believe art is a visual language of personal symbols and my work is a rough sketch or diary of my life. The collection of individual events and the emotional ebb and flow of everyday life eventually stream into a coherent current through my work.

Kathryn Martinez

Kathryn has been teaching the beginning pottery classes at the Boulder Pottery Lab for the past year and, prior to that, she was a teaching assistant for 9 years. She loves the enthusiasm and eagerness of beginning students and finds it very rewarding to see their skills and knowledge about the clay process grow. Her own work is primarily functional yet she is always searching for a way to embellish the ordinary and bring beauty into everyday life.

Al Segal

My first experience with clay was in the Pottery Lab's beginner class 12 years ago. I was immediately hooked. I mostly do wheel-thrown functional ware, and my focus is on surfaces, using sgraffito and other texturing techniques.

Aaron Winston

Aaron earned a master's degree in printmaking but at the end of his studies he began to practice a Japanese tradition of throwing porcelain. He was invited to visit Living National Treasure, Inoue Manji in Japan. After moving to San Diego, Aaron worked in industrial design creating unique service pieces in porcelain and learned studio operations and how clay shapes those that choose to collaborate with it. He has been teaching at the Boulder Pottery Lab for nearly 10 years, practicing and learning.

Youth Classes


Hannah Hanssens-Reed

Hannah has a Masters Degree in Arts Education from Harvard and has taught art classes in Boston, Spain, Peru, and now in Colorado. She is passionate about arts as a form of social change and works to create a welcoming and creative environment.

Jana Smith & Dakko Maurice

Jana and Dakko's goal is for the children to have fun together with clay. For being with clay, they say, "The rules, the tools, and the skills combine to meet the challenge of creativity and imagination." Through pinch, slab, and coil, Jana and Dakko teach through an approach that fosters self-directed individual exploration within the group. They have instructed the children’s pottery classes and the children’s summer and spring break camps, and are full of a unique passion and love for arts education. Positive feedback from students and parents encourage Jana and Dakko in their own exploration with clay at the Boulder Pottery Lab.

Judi Miller

Clay has been a passion of mine for most of my life. I do not have a “body of work” – every class I’ve taken, every instructor I’ve studied with, has expanded my skills and love for a variety of forms in clay. My work reflects my life as a woman, growing up outside the U.S. and travelling extensively, experiencing many cultures and their art.


Curtis Rindels

After an early career as a chef, Curtis tried an entirely different artistic endeavor by enrolling in classes at the Pottery Lab. He was hired as a studio assistant at the Lab in 2015 and has excelled in ceramics in a very short period of time. He teaches a pre-teen wheel-throwing class and is excited about pursuing a new career in education.


Interested in joining our team?  Visit our Internships or Visiting Instructors page for more information.