Fascinating! It is truly a biography of the English language, tracing it from its first beginnings, through invasions that threatened to end the language, to modern-day English. It is very detailed, with more examples than the ordinary reader probably needs or wants, but you can always skip over some of the examples.
It will take me forever to finish, as I need to read it slowly to take it all in. Plus I'll probably read dozens of fiction books while still reading this one. I am savoring it. It's fantastic!
p.s...It took a year to read, what with all the other books I read inbetween, but this is one I will re-read someday....Continua