This is a comprehensive introduction to current linguistic theory. It supposes no previous knowledge and terms are defined as they are introduced; but it gives a fairly rigorous and technical treatment of a wide range of topics, and brings the reader to an advanced level of understanding.
Possibly the most labour-intensive book of the year, Lyons has managed to affect my thinking on the linguistic landscape. While much of what I read isn't immediately applicable, I find it has had an effect on my language teaching and my grasp of my native tongue.
I'm excited to read the parts of linguistics I actually wanted to: semantics, discourse analysis, and how thoughts translate into words generally... Here I found the beginnings of what I wanted, but soon I will be able to get more specialised books regarding what I'm curious about the most.
If you're interested in linguistics, this is an awfully good book to look over, to make sure you're not backwards.