The Positive Design Reference Guide was published in 2015, and has been available since then through print-on-demand and for online viewing. Now we also have a PDF version available, which can be downloaded from the DIOPD website.
The Positive Design Reference Guide was published in 2015, and has been available since then through print-on-demand and for online viewing. Now we also have a PDF version available, which can be downloaded from the DIOPD website.