Magnetism and the present magnetic field
Magnetic field reversals
Earth's internal composition and the origin of Earth's magnetic field
The sun-earth connection
Magnetic orientation and navigation by animals
The effects of geomagnetism and plate tectonics on climate and paleoclimate.
Our magnetic Earth : the science of geomagnetism by Ronald T. Merrill. ISBN 9780226520506. Published by University of Chicago Press in 2010. Publication and catalogue information, links to buy online and reader comments.