An illustrated guide to the houseplants you need for clean and fresh air when you're stuck at home How clean is the air you breathe? Plants are the lungs of the earth: they produce the oxygen that makes life possible, add precious moisture and filter toxins. Houseplants can perform these essential functions in your home or office with the same efficiency as a rainforest in our biosphere. In this beautifully illustrated guide, noted scientist Dr Bill Wolverton shows you how to grow 50 plants that filter the most common pollutants, making it easy for you to purify the environments that impact you the most.

The underground secrets of medical cannabis cultivation from the heart of northern California's Emerald Triangle. Written by a native of the Marijuana subculture of Humboldt county with over forty years of in the field experience, this is a great primer for the aspiring grower and may even hold a few secrets for the veterans. www.growgreatmarijuana.com