Sorry. then, as I understand it, everyone can do them all? They can do any job?
This is a bad news .... Sorry again for my english.
There are no separate crafting or gathering professions/jobs in BLESS. In other words, there is no separate tailoring, mining, jewelcrafting, leatherworking, blacksmithing, etc. skills.
There is only "crafting" and "gathering"; or essentially two total skills you can level up. You can also completely skip crafting and gathering if you prefer, visit the crafting NPC, provide them the mats + some gold, and have it crafted instantly for you. The easiest way to obtain the mats is to gather and such, but you could buy them from guild members or trade other players for them.