Hello Suzanne
Thank you for your question.
We are an agency, so we don’t publish books.  We sell manuscripts to publishers.
Unfortunately, neither Sarah nor myself represents poets.  I believe that there are agencies out there who do.  You may be able to discover more about them by doing some online research or referring to the useful “Writers’ and Artists’ Yearbook”, which lists UK (and in the US editions, American) agencies and what they are looking for.  You should be able to find a copy in a good bookshop or in your local library.
Polly