I have taken just a single simple course on Japanese language at the beginning. I learnt the kana and counting and few simple expressions that are found in the first half or so of Japanese for Busy People I. This book was recommended by the teacher so I continued on and also bought the books II and III. I have also finished book II.
What I wish to know is what would you recommend after the book III is finished. I intend to do the JPLT. What books do you recommend I finish for that, provided I intend to do level 2 test.
i'd recommend doing a subs2srs deck of something simple that you really like... because as much as those books are useful they are super boring. I did them and kanzen master grammar for JLPT 3 and 2, and its a tough slog... Plus you don't really retain it anyway because its not SRS'd.
Japanese for busy people 3 is about JLPT 4, with some of the grammar from 3 maybe. Next you want to look at an intermediate textbook, like an integrated approach to Japanese, or something similar. Have a look on the JLPT website at the test questions if you want an idea of where you are at.
I would recommend "Japanese Sentence Patterns for Effective Communication". Really awesome book with a very good reputation.
That may be true, but the prices quoted for this book on the US and UK Amazon pages are nuts: "2 new from $1,386.41"? Or "2 new from £161.91"? Even if that's for the English-language version, there's something weird going on there...especially since amazon.ca has it new for $18.24.