There's quite a library here for you to peruse.  If you want to head straight on into the epic Peacock King Trilogy, start with Book 1. After that we suggest reading Echoes, which prequels the Peacock King but has more punch if you read it afterwards. It'll be a good preparation for The White Thaumist Trilogy, which starts two months after The Peacock King Trilogy ends.  If you're in for some brief fun, or you're waiting for the next chapter of the current book to post, try a short or a snippet!  For a medium-length jaunt that's not exactly a cross-country marathon like a whole book would be, a miniseries makes for a good selection.
 
Chronological concerns: The books are ordered by number, and shorts have notes on their placement in the timeline.
Characters: 
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Book 1: A Token-Box With Which to Buy a Soul