Most high-level Battle for Azeroth Leatherworking recipes has 3 ranks. Asking the guard will place a red marker on your map at the trainer's location. You can walk up to a guard in Dazar'alor or Boralus then ask where the Leatherworking trainer is.

Alliance: Cassandra Brennor is in Boralus at the Tradewinds Market.

Horde: You can find Xanjo in Dazar'alor at the Terrace of Crafters.

Kul Tiran Leatherworking is the Alliance version and Zandalari Leatherworking is the Horde version. The new BfA Leatherworking skill is named differently for the two factions, but the name is the only difference between them. You can also just buy the leathers at the Auction House, but then you will need a lot of gold. So, check out my BfA Skinning Leveling Guide if you want to level skinning.

Leatherworking is the best combined with skinning, and I highly recommend to level these professions together because it will be a lot easier to get the needed materials if you have skinning. The guide's primary focus is to show you how to level this profession, so if you are looking for more detailed information about BfA Leatherworking, check out my Battle for Azeroth Leatherworking Guide. This Battle for Azeroth Leatherworking leveling guide will show you the fastest and cheapest way how to level your BfA Leatherworking skill up from 1 to 175.

Dredged leather rank 3