I'm addicted to cook books (and craft books) and one of my recent purchases was Mexican Food Made Simple by Thomasina Miers.
I made the chorizo & potato quesadillas - so good!
The most Mexican thing I've ever cooked before was fajitas using those packets from the supermarket so I'm looking forward to making loads more from this book. I'm thinking burritos next and I'll definitely have to try one of the delicious-sounding desserts. Oh and making my own tortillas.
This book is now very near the top of my favourite recipe book list. What's your favourite?