Boardman is one of my favourite authors on Greek Art purely because he's so simple and clear.
His ideas are set out clearly and in sections making it easy to understand what period you are reading up on, and the area of Greece that it's in. He does focus a little too much on Athens during the Archaic through to Hellenistic periods, however, that is not an uncommon theme.
There are nice, clear pictures throughout the book that help to break up the text.
This book is great regardless of what level you're on. Whether you're curious, an Art Student or studying specifically on Art in the Ancient World.