Shelf life: Looking at secular books I’m so not a tomorrow’s person. I’m hardly a today’s person; this book came out six years ago, and I’ve just got round to reading it! However, I am glad I did. Secular Shelf Life Sarah Allen TOMORROW’S PEOPLEBy Susan GreenfieldPenguin. 284 pages. £9.99ISBN 978-0-14100-888-2 subscribe now Join today to gain access to the rest of this article and many others. more info login If you are already a subscriber, log in to continue. log in access code If you have an access code, enter it here: Go free trial Get free access for 14 days: Sign up Click here to find out how we take care of your personal data.