This recipe gives 1 skill up. If you have the Tannery building in your garrison, it can be purchased from the <Leatherworker> for 1 德拉諾製皮奧秘. It can also be purchased in Ashran. This is the only WoD recipe that is relatively easy to acquire the mats for: 5 x 生獸皮. All of the rest use either 光潔皮革 or 50 x 生獸皮. The tents don't provide skill ups and can't be learned.

The leatherworking recipe 德拉諾製皮奧秘 is learned from the recipe 德拉諾製皮, which can either be purchased in Ashran for 100 gold, or received as a reward from the Tannery quest line beginning with 獵人的呼喚 (A) or 戰士的罩氅 (H).

(Edit: added tent info)