I’ve put up a page analysing the examples of Khitan tents in the version of 18 Songs of a Nomad Flute published by the Metropolitan Museum of Art.  Includes yurts/gers of various sizes and complexity, canopy porches, attached vestibules, and wedge tents.

The beautifully detailed illustrations provide a wealth of information about the material culture of one of the 12th Century “proto-Mongol” steppe cultures, on the eve of the Mongol Empire.  The Met offers the full book as a PDF download.