There's a list of tiling courses found at
Tiling Courses | Wall Tiling Courses | Floor Tiling Courses UK and another list at
Tiling Courses : Tiling News but I fear nearly all of them are not up to the standard that Chase Tiling Academy are.
I'd consider travelling to the right course if I were you, certainly if it's a career you're looking for.
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OK, I've just updated the tiling courses list and have addedd the area's they are based to the listings. I spotted a few from Essex. Obviously visit diamond training centre too when you get chance though.