With an empty suitcase in tow, Daniel Wiltshire trawled through shelf after shelf of musty second-hand books in the Tokyo suburb of Jimbocho.
When he exhausted the offerings at one shop, he moved onto the next, all the while searching for compelling titles on all facets of Japanese culture, including samurai swords, zen gardens and ninja assassins.
If all went well, he’d soon be on his way home with a suitcase full of paperbacks specially curated for his bustling online business.