A few days ago there was an extra fan repo posted at yamapi_blue. The thing that stood out for me was the English book he was apparently carrying with him. I favorited it on Twitter since I knew I had a somewhat similar book for learning some essential Japanese. It has sentences like these:

Of course, that’s all the Japanese I’m going to need to be able to say for a lifetime. hahaha.

Available absolutely free from the intarweb, as all learning materials should be; provided you query the right place. INPUT! INPUT!