Available to pre-order on here: 
Amazon: relinks.me/1999753011
Barnes & Noble: https://www.barnesandnoble.com/w/why-is-my-piano-black-and-white-nathan-holder/1137175615?ean=9781999753016
Waterstones: https://www.waterstones.com/book/why-is-my-piano-black-and-white/nathan-holder/charity-russell/9781999753016