Ceramic Materials Workshop

Ceramic Materials ​Workshop is a place where ceramicists at all levels can learn online about clay and glazes.


Explore Our Different Ceramics Courses

All of our courses feature an in-depth study of glazes and clay bodies with optional hands-on lab experiment testing and live discussions with the instructor and other students.

Understanding Glazes Featured Image

Understanding Glazes

Introduction to Clay Bodies Featured Image

Introduction to Clay Bodies

Advancing Glazes Featured Image

Advancing Glazes

Crystal Ball


Learn. Understand. Make.

​​Ceramic Materials ​Workshop is a place online to understand and explore how and why our Clay and Glazes work (and don’t work). Our materials speak for us in the home and gallery. It benefits us to learn about how to speak through our materials. Mastering the skills of clay and glaze performance helps every ceramicist, become their best self in the studio.

Ceramicists at all levels can now learn how Clay and Glazes function with us online.


Learn on your own schedule with our self-paced workshops.

Glaze of our Lives Featured Image

Glaze of Our Lives

Answer all those questions you had since you started ceramics and more.

The Middle Glazes Featured Image

The Middle Glazes

Learn the answers to the mysteries of mid-temperature glazes.

Glazed and Confused Featured Image

Glazed and Confused

Learn how the Unity Molecular Formula and Stull’s Map can make your studio better.

Workshop Bundle Featured Image

Workshop Bundle

Includes all 3 CMW Workshops – Glaze of Our Lives, The Middle Glazes, Glazed and Confused – for a great price.


Check Out the Latest From CMW

CMW Logo Mugs Are Here!

Pro-Test is Here!

    CMW YouTube Video Premiere!

    Who We Are

    Meet Your Instructors, Rose and Matt

    Rose and Matt Katz will be your guides on your CMW journey. With over 40 years of combined glaze and clay experience, they have created an online learning experience for all levels of students.


    What Our Students Are Saying

    You don’t have to take our word for it…


    “You both have totally changed my ceramics, I am having the best year ever! Best thing I have done in my career was to take your courses.”

    ~ Ellen M. – Advancing Glazes Student


    “I just started the Clay Body course online and I’m already loving it and very grateful for you offering it. It’s really difficult as you mention to wade through the books available on this subject, and I love how fast and direct that you teach.”

    ~ Joseph D. @studio.3.p


    “I am listening to your lecture in the car through traffic and it’s a different experience now that I understand what you are talking about and actually experienced it myself.”

    ~ Shay C. – @shay.c4


    “One of the most important step I took in my ceramicist life is to follow 2 workshops from @ceramicmaterialsworkshop and learn about what really a glaze is.

    I have been working on it since October 2022 and it has been so amazingly interesting, challenging, beautiful, rewarding and exciting.

    I am of course only at the beginning of an endless research, but I feel confident about what we can offer in the studio, to the people who order from us and I can wake up one morning, have an idea of a glaze and make it…

    It is the best thing I have invested in and I am thanking a million time @studioluma_ceramics
    who introduced me to that course and who sadly and tragically passed away last year in the middle of her own glaze research. She is deeply missed.

    Thank you also to Matt and Rose for the life changing opportunity with your wonderful workshops @ceramicmaterialsworkshop

    It’s just the beginning 🥰” ~Seline – CMW Student


     “Thomas here, in France. I just finished your Glaze 1 and 2 lecture only courses and just wanted to drop you a message to thank you for your amazing work….7 years ago, I stopped working as a software engineer and started my ceramic journey….I was also really surprised by the amount of myths in the ceramic field.

    I was always feeling like there was some magic happening in the kiln and my scientific background was not really happy about that. That’s why I decided to take your online lecture only classes. I wanted to have a more scientific approach on all that. I just wanted to tell you how happy I am that I followed these lectures. I feel like I have a really better understanding of what’s going on in the kiln now.
    Thanks a lot for sharing all those elements, in a clear and entertaining way. I really liked that.”

    Thomas L.- @doller.ceramics

    2023 Understanding, Advancing and Intro to Clay Bodies Student


     “Thank you Matt & Rose for creating such an outstanding resource. It is incredible the passion you show for imparting and sharing your knowledge and I’m so grateful for all your time, energy and knowledge.

    I’m excited to continue to experiment and develop my ceramic practice putting into the practice the testing methods.  I’ve still so much to learn but I have a foundation that will serve me well.

    It really is hard to put into words how much you impact my learning. THANK YOU.

    We call teachers “Kaiako” in Aotearoa/New Zealand. Kaiako has a broader meaning than just to teach. A Kaiako is someone who is passionate about investing in the next generation. A steward of knowledge, imparter of wisdom, nurturer of potential, facilitator of growth. Confidence builder. Mentor. 

    Thank you for being my Kaiako, I appreciate you.”  Jan 2024

    Meg R.  @megrouslton – CMW Student 

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