Well, you sold me.
I just got your latest book.
The comments on Amazon were a selling point and
the relatively cheap price and a fairly short book
was also valuable aspect to me.

Comments at Amazon:
"The book is well written, in fact, I found it riveting.

Greenberg, however, did not come to the conclusions he came to, or carry out the research he did with NASA without significant cost. He makes the point in Unmasking... that "Big Science" is a very flawed enterprise, and he provides quite a bit of discussion of conflict surrounding the research program.
...
To give you a flavor, here is an excerpt from the publisher's overview of the book:

"The book also provides unique insights into how "big science" gets done today, and it is not always a pretty picture. From his perspective as a Professor of Planetary Sciences at the University of Arizona, and a quarter-century-long membership on the Imaging Team for the Galileo space mission, Greenberg describes how personal agendas (including his own) and political maneuvering (in which he received an education by fire) determined a lot about the funding, staffing, and even the direction of research about Europa. "

And the review critical:
"Unfortunately this book has second narrative that is distracting and frustrating.
Greenberg commits half of his time complaining of being marginalized by his peers, and having to fight to prove his ideas about Europa. However, when he discusses the competing ideas he is so condescending and dismissive that he comes across as a tedious self-righteous whiner.

The book is full of sarcastic use of quotes, idiotic statements like "He is now a Jesuit brother, so he is reasonably credible", and references to other scientists on the team as the "Galileo Regime", the "thick-ice clique", riding on the "thick-ice bandwagon", and adhering to the "party line". "

I am of the belief that space exploration is mostly about politics. So unlike others I think one *must* talk about the politics involved.

Also bought Robert Zubrin's "How to Live on Mars: A Trusty Guidebook to Surviving and Thriving on the Red Planet (Paperback)"

Another cheaper and shorter book, which I hope to laugh a lot while reading.

How to Live on Mars: A Trusty Guidebook to Surviving and Thriving on the Red Planet:

"Review
“Informative, irreverent, and just plain fun to read. On to Mars!”
—Ben Bova, author of Mars Life

“You’ll marvel at possibilities, laugh out loud at clever inventions, and relish the tongue-lashing of our present times Zubrin delivers with high-velocity, clear prose.”
—Gregory Benford, author of The Martian Race "