The floriculture industry is a fast paced field with changes in marketing trends and new advances in plant materials, equipment, and production techniques occurring daily. The successful business will need to stay abreast of the changes while constantly searching for ways to produce, sell and ship the product better and more efficiently. In addition, an occasional refresher may be needed to relearn old information. A variety of books are available on almost every subject. Trade publications and newsletters can provide the latest information on a specific topic or in a local geographic area. Several of the greenhouse trade journals are free, while many of the organizational magazines and newsletters can be obtained by joining the organization. For those wishing to get in depth information may want to check out the science journals from several horticultural associations.