There's an old saying that "those who can, do; those who can't, teach." This is almost a universal law… almost - Gore Design Co. is one of the few exceptions.
Consider this, do you want to take a class from a company/person that couldn't make it in the business they are attempting to teach you? A company that teaches concrete countertops, sinks, fabric-forming and pricing and yet couldn't make it as a business doing those exact things? That sounds crazy, yet that is the state of union for training options in this market segment.
I founded Gore Design Co. in 2004. I have been operating a successful high-end concrete company for a decade and I hold occasional workshops to pass on real-world knowledge that matters. I didn't learn the skills that I teach from reading a magazine article or watching YouTube videos, I learned them the honest way; experience. Calculus won't help you run a successful concrete business but my training can. When you are ready to take the next step and attend a hands-on workshop really contemplate the importance of learning from someone that does this day in day out.
I have been teaching GFRC for concrete sinks and countertops longer than anyone else, that is a fact. I have been teaching fabric-forming longer than anyone else (as well as pioneered most of the methods attempted to be taught by others), that too is a fact. Invest in your business, learn from the pro's.