I recently obtained a copy of S.C. Tiwari's book,
Superluminal Phenomena in Modern Perspectives.

It was rather expensive, and the publisher, Rinton Press,
has done Dr. Tiwari a serious disservice with respect to the
overall quality of the first printing, because the book
contains a large number of typesetting and editing errors;
a situation I did not expect to see, considering the price.
[I ordered it online, at www.RintonPress.com, and paid $78,
by credit-card, plus $6 shipping. But it arrived in 3 days.]

However, Dr.Tiwari's accomplishment comes through anyway, and
is worth examining in great detail. The blurb on the back of
the book is absolutely true. It is a "comprehensive review" of
the literature on superluminal phenomena, including "balanced
critique with open mind" of the many theories and concepts most
associated with such phenomena. And it provides "delineation
of deep physical insights" on the topic. It is indeed a "unique
endeavor", covering the "whole spectrum" of information on the
phenomena, in a single book.

I recommend the work to anyone interested in gaining a deep
understanding of all superluminal phenomena, and who seeks an
extensive ready-made list of print references on the subject.

For students and researchers with limited budgets, I suggest
obtaining the book using the Library Loan Program supported by
most public, college, and university libraries.

Once I have studied the book sufficiently to have committed the
information on tachyons to memory, I intend to post a detailed
review on this message board, and at my main web-site.

Stay tuned.