1) Garik's Secrets of Bag Expansion from Garik Nogflop in Sunrise Hills @ -2792, 2043 ==> for Unexpanded Legendary (14 slots)
2) Extradimensional Luggage: A Guide' from Scribe Zikett in POK ==> For Unexpanded Supreme (16 slots) and Flawless (18 slots)
3) Guide to Transcedent bags from Scribe Zikett in POK ==> For Unexpanded Transcedent (20 slots)