Jonathan Star (and Rumi!) did a fantastic job with this book. There are so many great books about Rumi's writings, but I suggest you pick up this one for an introduction to his brillaint poetry. It includes a brief overview of Sufism, the mystical branch of Islam that was founded in part by Rumi. It also includes a brief overview of his life. Another useful feature is the explanation of selected terms and symbolism in the back of the book.
My favorite poem in the book is "This Eternal Play."
Here are the opening lines:
"At dawn the Moon appeared in the sky.
It floated down and looked at me.
Then, like a hawk snatching it's prey,
it grabbed hold of me
and dragged me across the sky."
Stunning, magical work! I would call it a "version" instead of a translation. I checked it against a more word for word translation from the 19th century, and it's quite different. However, Mr. Star's editorial choices do not get in the way of Rumi's message. Yes, changes have been made, but I enjoy these versions.
Order it and enjoy!