[Q] Book on programing and advanced programing with ADA

[germond@ensta.fr (Emmanuel Germond)]

Hi!
I learned ADA 2 years ago, but left it aside due to a lack of a librairies
and compilers on my site (right now we still have nothing more that a Telesoft 
compiler on a Sun 3/80). I switched to C, which I find very useful for system 
programing (I work under UNIX). As Gnat seems to be stable, I'm willing to 
start again with ADA, and as a matterof fact I'm looking for a good book on ADA.
AS I told you, I already have a basic knowledge of ADA. I'd like to find
a book that would be more than an introduction to ADA, but not a reference manual.
In fact, I'd like something that would be to ADA what the O'Reilly manual #1 of
 the X programing series is to X, with some more advanced features.
Any recommendations are welcome!

Em (who would like to learn an OO language, so don't let him bend towards C++ :-) )
--
Emmanuel Germond             | "For in much wisdom is much grief; and he
germond@ensta.fr             |  that increaseth knowledge increaseth sorrow"
http://www.ensta.fr/~germond |    Ecclesiastes, chapter1, verse 18