I made the first project in Cat Bordhi's New Pathways for Sock Knitters.
It's called "Little Sky Sock" and is for babies. Fortunately we have a new baby in the family.
I'm exited to learn more of the "architectures". The basic idea of the book is that gusset increases don't have to be even placed in the traditional spot right after you turn the heel (if working toe up). Instead they can be put on the instep, on the sole, in a combination of the two. And they don't necessarily have to be evenly spaced. This allows for placement of textures and designs.
Plus it is just fun to not be tied to just one way to make socks.