This book is the result of almost thirty years of puzzling over economic questions. It has been written piecemeal and largely alone. Any errors are therefore mine alone.
Where images are not my own, I have used mainly unrestricted public domain images; I’m grateful to those who generously made them available. My heartfelt thanks to family and friends who have supported me in this endeavour with suggestions, practical help, and most of all, encouragement.
I have endeavoured to cite faithfully and correctly the sources consulted. Citing any other work or source, and the use of images, does not imply any endorsement by their author or affirmer, of my work, or any connection with it. Image sources are indicated as follows:
WMC - Wikimedia Commons, no restrictions, creative commons CC0 1.0 Deed CC0 1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/.
OGL - UK Open Government Licence. To view this licence, visit http://www.nationalarchives.gov.uk/doc/open-governmentlicence/version/3/.
geograph - https://www.geograph.org.uk, stamped image file used with credit added (to comply with Creative Commons licence).
Met - The Met New York, under Creative Commons Zero (CC0), see https://www.metmuseum.org/about-the-met/policies-and-documents/open-access.
Auth - author.
Front cover drawing: Lemming – from archives of Pearson Scott Foresman [WMC].