The ultimate prop for Me-time, colouring books for adults remind us of the pleasure of concentrating on one task at a time and the importance of undertaking projects that are not geared exclusively towards any specific status-based end goal. Not an excuse to network, to become fitter, better-read or more cultured: it's no wonder the mental health benefits of zoning out and colouring in is being espoused by so many major news outlets. This adult colouring books features elaborate patterns and memorable characters from the Disney Princess films.