The Goodlife Bookshop are giving away copies of their book The Polytunnel Companion during February - just pay p&p. From the site:
"Based on her own first-hand experience the author covers all the dos and don’ts of choosing and constructing a polytunnel. From the pitfalls and benefits of buying second hand to what questions to ask the manufacturer, this book sets out to provide not only essential advice and tips for the first time polytunnel owner, but also step-by-step guidance on site selection, soil preparation and constructing the tunnel. It also details ongoing maintenance and repairs as well as tips on using the polytunnel throughout the seasons. Paperback 136 pages."
Order from:
http://www.goodlifepress.co.uk/the-polytunnel-companion