https://chessbookreviews.wordpress.com/tag/new-art-of-defence-in-chess/
http://theweekinchess.com/john-watson-reviews/testifying-for-the-defence
https://web.archive.org/web/20140708104148/http://www.chesscafe.com/text/howtodefend.pdf
http://dev.jeremysilman.com/shop/pc/How-to-Defend-in-Chess-p3510.htm
Perhaps, book samples can be found at the sites for Batsford and Gambit Publications.
"'How to Defend in Chess' doesn't teach one how to defend so much as it discusses defence in general terms and shows brilliant examples of defence. One might study this book in detail and not know how to defend any better, although one would certainly appreciate defence more."
I guess I'll go for Soltis' one.
Thanks much for the help 
Just for the record, that quote is from Watson.
Yes but it's better than nothing :D I guess I'll start with Soltis' book and then buy the other one later.
I liked the Soltis book better because it literally teaches a school of defending in chess called New Defense. It used to be that so many masters thought they could defend for hours and eventually find counterplay, so long as their king remained safe. It turned out that while this was probably the "best way" to defend, it was psychologically unsound. In Russia in the late 50s there was a master you may have heard of him his name was Tal and quite simply he would brutally pressure his opponents to win with unsound sacrifices. Defenders had to find a way to defend those kinds of attacks in a psychologically gratifying way: thus new defense.
Hi everybody!
I intend to buy a book about defence, however I can't choose between "New Art of Defence" by Andrew Soltis and "How to Defend in Chess" by Colin Crouch. Could you please tell me which one is better? I mean which is more scientific, instructive and encyclopedic?
Thanks for the help.