I thought it would be interesting to see what people owned around here. Plus, I love lists!
Here’s a list of the textbooks I own:
Genki I 2nd ed. & workbook
Genki II 2nd ed. & workbook
Genki 2nd ed. Answer Key
Minna no Nihongo I & Translation and Grammar Notes - English
Japanese For Busy People I
Japanese For Busy People II
Yookoso! An Invitation to Contemporary Japanese
Genki and Minna no Nihongo have to be my favourites. Right now we’re using Japanese for Busy People in my classroom which I personally hate lol. Yookoso was my first textbook when I took Japanese back in college, but I find it terrible as well
Next, I want to get Minna no Nihongo 2 & the notes, Shadowing Japanese, and A Dictionary of Basic Japanese Grammar.
I also own the Minna No Nihongo Series! I have Minna no Nihongo I and II and the associated Translation & Grammar Notes and Workbooks. We’re using those in my Japanese language school. I really enjoy them! The only thing I wish they had more of is the cool little cultural notes that Genki has at every chapter.
Genki 1 and 2 plus the workbooks
Integrated Approach to Intermediate Japanese
Shin Kanzen Master N3 vocab, reading, and grammar books
Shin Kanzen Master N2 vocab, reading, and grammar books
JLPT N2 Target Vocabulary
I also own Japanese the Manga Way but I have never used it.