Take the JLPT N5 and learn the Japanese language skills you need! The following are a few textbooks that cover the curriculum of the JLPT N5, and that will help you prepare for the test.
Similarly, the Japanese Language Proficiency Test (JLPT) is a test that measures the level of proficiency in the Japanese language. The best way to prepare for an exam is to read textbooks that cover the types of questions that you will encounter on the test.