The best-selling book on “popular mycology,” Mycelium Running, would be a useful reference book in every home, especially to anyone involved in farming (or gardening), forest management and environmental cleanup. The second half of the book is an instruction manual on growing delectable mushrooms for food and medicine.

The book is filled to the brim with valuable information on how to improve soils for farming, gardening and forestry; create simple, low-cost biofilters for waste water (mycofiltration); and clean up toxic waste (mycoremediation).

As an example, a method for building a mycofiltration bed to filter waste water is described in exacting detail. Dimensions, depth, layers and recommended materials and mushrooms are listed. This mycofiltration is useful, among other things, for filtering manure enriched farm runoff.

Not only does it solve the problem of farm runoff and E. coli contamination of nearby streams, it can also yield highly palatable food mushrooms, and the bed itself can be dug out every 2-3 years and then used as an excellent fertilizer for the farm.