kqr

Even if the book would be hopelessly outdated, that's usually informative too.

if I had to select one it would be Out of the Crisis by Deming.

Out of the Crisis by Edwards Deming is one of those books I think should be read

there is one clear favourite among many very good ones: Performance Modeling and Design of Computer Systems. Queueing theory is probably one of the most useful subjects of all time

I liked /Rapid Development/ too.

Deming's A New Economics

Wheeler's Understanding Variation