Instruct: Classify the given Amazon review as either positive or negative.
Query: Nature Calls

I picked up Nature Calls for my father. Let's just say he spends a lot of time in the privy. On the first pass through, the pictures were appealing - funny, curious and down right bizarre! Reading through the second time, I found the facts, stories and poetry to be truly inspiring. Who knew there was so much to learn about the outhouse! The necessary, the backhouse, the privy. The author has done a great job of recording this important part of our American history. I'll never look at a port-a-john in the same way again! I'll be picking up this book for all the men in my life.