A comprehensive guide to growing food plants in a polytunnel, season by season, which also is relevant to greenhouses. Deals with a large range of plants in considerable detail, how deal with pests and diseases and advice, which may seem obvious when read, but is not covered in most gardening books. For example, avoiding the use of chemicals which will build up in the soil in the absence of rainfall etc. to leach them out, and opening the tunnel for a short time on winter mornings to let the cold air out. This book has opened my eyes and I am looking forward to a much more productive 2011.