Taking the Japanese Language Proficiency Test is a great way to not only assess your Japanese skills, but also to give yourself a concrete goal for your studies.
This book covers most if not all of the vocabulary needed to pass the JLPT N4 test. The test makers no longer give exact specifications, but this collection is based on previous tests and similar level vocabulary.

Every single vocabulary word found in these pages have an example sentence. Also, each word or example has a corresponding sound file. This can also be useful for shadowing to improve your pronunciation.
Find a link in the back of the book to download free sound files of all vocabulary and example sentences. In addition to the over 1,200 sound files for the individual words and sentences, we also created longer "chapter" sound files with English translation after the Japanese. This is so you can listen while on the go without having to need the book.