Unarmed combat always emphasizes positive defense and offense: as long as taking the right defense & attack methods, you can almost always conquer the enemy. Hand-to-hand combat training has many benefits. First, it is a kind of sport for improving physical quality and strengthening build; Another, it can enhance your courage to struggle against the enemy while fighting them alone.

Encyclopedia of Water Garden Plants provides the perfect photographic reference of a variety of garden plants for the gardener or horticulturist. It covers hundreds of aquatic plants which are often ignored by other similar books, involving edge plants, floating leaf plants, marsh plants, water plants (such as water lotus), all of which are made a detailed description.

U.S. Air Force Pocket Survival Handbook: The Portable and Essential Guide to Staying Alive is originally designed for the U.S. Air Force formal training, but it can also provides comprehensive and detailed outdoor survival skills for ordinary readers.