It is noted that
Much has changed in the poker world since this book was published, and I believe that the society that surrounds the card room has changed as well, although many elements remain very familiar. Despite the fact that the research done is now 20 years old, this is still a landmark work in gambling literature, and nothing else has come along like it, much less to supersede it. This is unfortunate, as I believe this society is deserving of more and deeper study.
from site
http://www.jetcafe.org/npc/reviews/g...ker_faces.html
which was googled.