The bunny for example is only a couple of days of commute time. Done in pieces it's an on-the-go project for public transport knitters like me and easily achievable whilst also holding a conversation at the same time - another important factor in my pattern choices. Multi-task knitting is essential in the metropolis.
Seeing the book become a real thing has inspired me to knit the patterns over again - this time though I'm going to use 4-ply cotton and tiny needles and make a little mini bunny in pink. Yes I'm woman enough to knit a cute pink bunny for myself on the train without feeling threatened by all the sensible commuters reading the paper. Happy knitting.