ありがとうございます!
I appreciate everyone jumping in and explaining. I hope it helps others too. Genki I is a JLPT 5 (ish with some 4). I don’t see it in the next book either (although I could easily not know what I’m looking for).
I really like reading this particular book, because most of the Japanese is mostly grammatically correct or else commonly used. I tried to read one of the other books, and there was so much slang, I didn’t find it useful (but might have been if you’re goal was to read Manga.)
I have to say, I do love reading Manga. I have been reading Haikyu in English. Who knew reading about volleyball would be so interesting. I might have to go watch a game.