- Who
- Secret Garden: An Inky Treasure Hunt and Colouring Book
- What
- 2,213,988 unit(s) sold
- Where
- Not Applicable ()
- When
In the year leading up to 7 May 2016, Secret Garden: An Inky Treasure Hunt and Colouring Book – illustrated by Johanna Basford (UK) and first published in 2013 – sold an estimated 2,213,988 copies globally, according to Nielsen Bookscan.
This total takes into consideration both the English version of Secret Garden and a Brazilian translation, published under the title <i>Jardim Secreto</i>.
The second biggest-selling adult colouring book between 7 May 2015 and 7 May 2016 was also by Johanna Basford: Enchanted Forest: An Inky Quest and Colouring Book (and its Brazilian translation, Floresta Encantada) sold 1,007,883 copies worldwide in that period, according to Nielsen Bookscan.