Listmania!
Some of my favorite art books
By an Amazon.com customer
Ed RuschaEd Ruscha by Richard D. Marshall
Buy used from: $39.25
A painter and artist that challenges almost all conventional notions of what painting (i.e., art) on a piece of canvas should be.
Art: The Critics' ChoiceArt: The Critics' Choice
Buy used from: $1.95
Uneven, but great for casual browsing.  And it's fun to disagree with some of the choices!
Jasper JohnsJasper Johns by Roberta Bernstein
Buy used from: $29.38
This may be be out-of-print, but find it if you want to be intellectually and aesthecially challenged and enlarged - there is no artist quite like Johns.
Antony Gormley (Contemporary Artists)Antony Gormley (Contemporary Artists) by John Hutchinson
Buy new: $30.36 / Used from: $19.95
A beautiful, compelling artist of great integrity that isn't afraid to take chances.
Jenny Holzer (Contemporary Artists)Jenny Holzer (Contemporary Artists) by Jenny Holzer
Buy used from: $10.25
You will never look at a street sign, billboard or TV ad the same way again after experiencing her art.  Times Square as designed by Ludwig Wittgenstein!
Wayne Thiebaud: A Paintings RetrospectiveWayne Thiebaud: A Paintings Retrospective by Steven A. Nash
Buy new: $37.80 / Used from: $35.97
Fun, fun, fun - and conceptually profound.  Even in reproductions, his creamy brushstrokes are an amazing thing to see.
Christo and Jeanne-Claude in the Vogel CollectionChristo and Jeanne-Claude in the Vogel Collection by Molly Donovan
Buy used from: $6.39
Art that people actually like and flock to in droves to see!  Art that gets people thinking!  I can't think of higher praise for an artist.
Gerhard Richter: Forty Years Of PaintingGerhard Richter: Forty Years Of Painting by Robert Storr
Buy new: $53.55 / Used from: $60.00
From blurry docu-realism to tortured, violent abstraction, he remains a powerful and challenging artist - you can't ignore his work.
Rendezvous: Masterpieces from the Centre Georges Pompidou and the Guggenheim MuseumsRendezvous: Masterpieces from the Centre Georges Pompidou and the Guggenheim Museums by Stanley Cavell
Buy used from: $11.25
A wonderful book to just browse through on a lazy day - with lots of good color plates. 
Edward Hopper: The Art and the ArtistEdward Hopper: The Art and the Artist by Gail Levin
Buy new: $27.04 / Used from: $11.97
Like Richter, you can't ignore him.
Paul Klee: His Life and WorkPaul Klee: His Life and Work by Carolyn Lanchner
Buy used from: $189.00
Once you've entered the magical, hidden world of Paul Klee, you never want to leave.
History of Modern ArtHistory of Modern Art by H. H. H Arnason
Buy new: $86.09 / Used from: $18.49
The beginner's (and seasoned veteran's) indispensable Baedeker.
Robert MotherwellRobert Motherwell by H. H. Arnason
Buy new: $69.35 / Used from: $75.70
This hard-to-find volume has amazing color plates from every period of Motherwell's career.  The many "Open" paintings reproduced in this book showed me just how exciting and new great art can be.
Philip Guston (Modern Masters Series, Vol. 11)Philip Guston (Modern Masters Series, Vol. 11) by Robert Storr
Buy new: $19.23 / Used from: $9.95
A tragic, funny, brilliant, misunderstood painter.
Nicolas de Stael (Q.L.P. Art Series)Nicolas de Stael (Q.L.P. Art Series) by Guy Dumur
Buy used from: $16.93
A little-known painter, whose amazing brushwork and profoundly beautiful and intelligent paintings blur the lines between abstraction and representation, to the endless delight of art lovers like me.
Greatest Works of Art of Western CivilizationGreatest Works of Art of Western Civilization by Thomas Hoving
Buy used from: $4.00
Temperamental and opinionated to say the least - but the works he's chosen are all undeniable masterpieces, especially the Assyrian relief of the dying lioness.
Johannes VermeerJohannes Vermeer by Arthur K. Wheelock Jr.
Buy new: $70.00 / Used from: $10.00
One of my favorite artists - the light, the light!
Botero: New Works on CanvasBotero: New Works on Canvas by Fernando Botero
Buy used from: $41.92
Botero is Botero - enough said!
Minimalism (Themes & Movements)Minimalism (Themes & Movements) by James Meyer
Buy used from: $107.47
Excellent overview of a much-misunderstood movement.  Painting, sculpture, in situ are all covered.  And lots of primary texts.
Theories and Documents of Contemporary Art: A Sourcebook of Artists' Writings (California Studies in the History of Art)Theories and Documents of Contemporary Art: A Sourcebook of Artists' Writings (California Studies in the History of Art)
Buy new: $23.62 / Used from: $12.95
Living, breathing art history straight from the horses' mouths!
ChardinChardin by Professor Pierre Rosenberg
Buy new: $52.29 / Used from: $32.95
My favorite artist - not just mirrroring reality but transforming it, creating unforgettable works of beauty and truth in the process.