I've made an extensive article about the making off 'Wonderhand' and it's now online on I love Typography.

"Although I’m always dealing with letters in my work, embarking on a type design project is rather the exception. My main occupation, ‘Lettering’, varies from commission to commission and projects tend to last for short periods of time with widely different outcomes. Type projects normally extend for a longer period of time and, from my perspective, are very enjoyable until the moment I get into the rough path of type production: months spent looking at boxes of black letter shapes, dealing with letter spacing and kerning pairs. It demands considerable motivation that, in my case, only arises from the personal belief that I have a very good idea.". Read more here.