The Night Parade of One Hundred Demons, written and illustrated by Matthew Meyer, is a 224-page full-color yokai encyclopedia containing over 100 creatures from Japanese folklore. It was funded through Kickstarter in 2011 and first published in 2012. A revised edition was published in 2015.
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The Hour of Meeting Evil Spirits is a 286-page yokai encyclopedia, serving equally well as a second volume to Night Parade and a stand alone book. It contains over 125 fully illustrated entries which cover Japanese ghosts, yokai, magic, and legends. It was funded through Kickstarter in 2013 and published in 2015. Available from Amazon.com in paperback and Kindle formats.