Good link, but it's not the full picture...if you look to the right of your photocard licence there may be some other codes such as 107, 101 Etc..
These further restrict your licence entitlement
For instance C+E is NOT always articulated Goods vehicles. It means Large Goods Vehicle towing a trailer and if it has a code alongside it (102) it means DRAWBAR trailers only.. not 5th wheel type.. C1 +E (with a code of 107) Means limited to 8,250 Kg not 12,000 Kg..Read 'em carefully boys'n girls.. or prepare to bluff the Police Officer who pulls you...'cause he may not know either...
also if you send your licence off for any reason, make sure it comes back with the right entitlement. Swansea are quite sloppy and it's a bugger to get 'em back. You also need, where appropriate to make sure they transfer your rights for Minibus..