Shardborn Style is a collection of 14 books that make up part of the Crafting Motifs library. Reading these chapters allows access to the Shardborn Style for crafting. Chapters (or rarely the entire book) can be obtained as a possible quest reward for completing daily quests from Legionary Jaida found in Skingrad. (Skingrad Reward Coffer)
Learning all 14 crafting motifs earns the achievement West Weald Legion Style Master.