I purchased this book for the December JLPT and it didn't disappoint. What I like about this book is that it has a lot of added personality with the illustrations. Many of the other books available for the JLPT have little to no illustrations. And the ones that do exist are pretty drab.
Some of the reading exercises are incredibly challenging but that just made the test that much easier.
I was also surprised to see that it includes 3 full practice tests. I was going to buy a whole another book that had practice tests but didn't need to because of that. Just be sure to download the materials from their website. There is a link in the book. At first I was a little confused about where to pick up the listening since there isn't a CD included with the book but everything is available online.
Another reviewer commented that they couldn't find the audio for the practice tests but it is available on the Tuttle site, just need to follow the Dropbox link.
Clayton also has an amazing YouTube channel with some great videos that explain all the grammar points for the N5 too. That has been a huge help.
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