Principles of Programming Languages (2011)

Another good book on this subject http://papl.cs.brown.edu/2014/ It's less profound but easier to understand. Good fit for PLT beginners.

A newer version is available elsewhere.

http://pl.cs.jhu.edu/pl/book/dist/book/book.pdf

Not even a mention of functional programming? Makes me wonder

How do come to that conclusion? The bulk of the book uses OCaml for examples and defines a simple language called F-flat:

--------------------- 2.3 The F[ Programming Language Now that we have seen how to define and understand operational semantics, we will begin to study our first programming language: F[.

F[ is a shrunk (flattened) pure functional programming language. ---------------------

Sorry about the missing flat symbol, it didn't survive copy and paste from the pdf.

"Fb is a shunk (flattened) pure functional programming language."