Sellers labels himself in youtube or instagram (?) as an amateur woodworker, not a fine furniture maker or instructor. I wondered for some time why he does so. For a guy (from the UK) who has done work for the White House, I would not believe humbleness alone accounted for it. I think his latest blog post explains it. Check it out if you're interested.
For one thing, in my dictionary, professional woodworkers don't exist. The adjective "professional" carries a special meaning for recognition subject to accreditation requirements, etc. Some people like to refer woodworkers who do woodworking for a living or have been in the trade long enough as professional woodworkers. Sam Maloof, recognized with a MacArthur “genius” Grant, had simply "Woodworker" on his business card.
Many excellent furniture pieces seen in FW Reader's Gallery pages are done by amateur woodworkers. Sellers nails it right this time.
Simon