Know Your Magnetic Field Author:William E. Gray Know Your Magnetic Field written by legendary author William E. Gray is widely considered to be one of the top 100 greatest Inspirational classics of all time. This great book will surely attract a whole new generation of readers. For many, Know Your Magnetic Field is required reading for various courses and curriculums. And for others who simpl... more »y enjoy reading timeless pieces of classic literature, this gem by William E. Gray is highly recommended. Published by Classic Books America and beautifully produced, Know Your Magnetic Field would make an ideal gift and it should be a part of everyone's personal library.« less