Rounded thoughts

The essays that make up James Burke’s Circles all start at some thought or
observation, then wander on connecting paths with other events, people,
inventions and scientific discoveries until finding themselves back at the
beginning. It’s fascinating. Take an essay a day and remain impressed. Overdose
and you may drop by the wayside. Burke’s style is conversational and he can’t
resist a laboured joke. Published by Simon & Schuster, $25, ISBN
074320008X.