Question about suspension design research material

[Rhino]

Suspension design is something that's always fascinated me, although I had no reason to delve further into it's minutia. I've now decided to research it further and look into the potential of building my own subframe.



Before I go any further I'd like to clear up a few things:
1.) Yes I did search. That's where I found a multitude of titles that I already have on order.
2.) I realize that in designing it myself, I will most likely not end up with earth shattering performance. There are two things driving this decision.
a.) I simply want to further my knowledge on the subject
b.) I haven't found a subframe, still in production, that fits my criteria while still being in my price range.

My specific question is in regards to the publish date of books. Is a book's knowledge of the subject subject to the "expiration date" as the technology we find in cars?
As you all know, suspension design is an ever evolving subject. Taking the Vette for example. There have been enormous jumps in technology at every generation. One book I've fallen in love with is Chassis Engineering by Herb Adams. When ordering it I noticed it's 1993 publish date. This was during the C4 era. Looking forward to the C5 and now C6 era I see huge advancements. Are the more modern books a better representation of the "state of the art?"