This was the poetry bible for first-year students in my English major. Very useful, especially for those who need guidance in understanding poetry, like me for instance ;P Those questions at the end of each poem, I can't tell you how much that helped me form some semblance of interpretation. I just found my copy of this book (actually it's my sister's copy, I used her old books for class) among other books that I forgot I still have, so I guess it would be useful whenever I feel the need for some poetic spirit.
I bet my college friends would want to comment on this. Go on guys... :D