Introductory deal: Receive a free 30-day trial, the latest issue of the club newsletter, two £10 book vouchers and a hardback edition of Answering Back edited by Carol Ann Duffy when you join the Poetry Book Society. Memberships start at £40 per year. Full members receive four poetry books each year; charter members receive 20. Then: That's it. There's no obligation to purchase additional books. The society, founded by T S Eliot in 1953, also has an educational membership for schools and teachers. Sample authors: Carol Ann Duffy, Geoffrey Hill, Roger McGough, Paul Farley, Simon Armitage, Paul Muldoon, Jacob Polley, Les Murray, Seamus Heaney, Jane Hirshfield, Jane Routh, Tomas Transtromer Shipping & handling: Included. Catalog arrives: Every three months. Credit card required? Yes (required to join). Customer service: 207 833 9247 or email. Open to: U.S. residents, including its territories and APO/FPO, Canada residents, U.K. residents.