would you recommend a more recent book comparable to "Empires of the Word" by Nicholas Ostler on the subject of languages ? I am really enjoying the book, but it's over 20 years old at this point. I wonder how much of the information is out of date now.
I don't recommend any books written for the general public. Too full of compromises, oversimplifications, and obsolete ideas. I can only recommend learning the field through the same course materials used in training the next generation of researchers. Of course, this is a very large time commitment.