Yokai Attack!: The Japanese Monster Survival Guide
Yurei Attack!: The Japanese Ghost Survival Guide
The Hour of Meeting Evil Spirits: An Encyclopedia of Mononoke and Magic (Yokai Series Book 2)
The Night Parade of One Hundred Demons: A Field Guide to Japanese Yokai (Yokai Series Book 1)
The Illustrated Ninja Handbook: Hidden Techniques of Ninjutsu