Recommended Books
Natori Shunsen Catalogue Raisonne
Kushigata Municipal Shunsen Museum
Kushigata, Japan; 1991, 112 pp.

This book is the definitive reference on Natori Shunsen, and contains color photos of all of his woodblock prints, as well as numerous paintings and sketches. Unfortunately, all of the text is in Japanese, including the titles of the prints. Biographical information in English is available in the following books:
 

The new wave: 20th Century Japanese Prints from the Robert O. Muller Collection
editor: Amy Reigle Stephens
Bamboo Publishing Ltd, London; 1993, 228 pp.
 
Modern Japanese Prints: 1912-1989
by Lawrence Smith
British Museum, London; 1994
 
Guide to Modern Japanese Woodblock Prints: 1900-1975
by Helen Merritt and Nanako Yamada
University of Hawaii Press, Honolulu; 1992, 384 pp.