I have been working with Vue for the last 3 months and it has been a very pleasant and rewarding experience. While Vue's official guide is a wonderful resource, I feel that it doesn't delve into topics like Vuex, VueRouter, interacting with an existing API, integrating Vue into your existing project (Rails, Node.js etc) etc.
I have started writing a small book that starts off with a gentle introduction to Vue.js and then walks the readers through building a complete SPA (Single Page Application) similar to Reddit/Twitter.
This year, I want to spend the first couple of months finishing this book.
For those interested, I have created a small subscription form - http://eepurl.com/cvUk5D. You can add your email here to get notified when I launch this book and also get access to the early release.