Kovecses' book is a comprehensive tour through the last couple decades of research on cognitive science & metaphor
Metaphors We Live By was the starting point of interest around Conceptual Metaphor Also known as Cognitive Metaphor, but an enormous amount of research and thought has been built off its foundations.
This is a well-written, up to date introduction that covers most of the metaphorical research from the 1980s up to now.
"The way most people think about metaphor is an outdated view – seeing it only as a feature of language, a figure of speech, or artistic flourish. A fancy add on."
"Over the last few decades, an enormous amount of research has come out of Neuroscience and Cognitive Science that shows metaphors are instead fundamental to the way the our minds work. They are structural concepts that form of basis of all human cognition.