"Introduction to Microeconomics" is an artist book by German artist Stefan Klein.

“I bought the book Mikroökonomie on Amazon. Once it was delivered I returned it and got a refund. The next day I bought the same book on Amazon again.Once it was delivered I returned it and got a refund. The next day I bought the same book on Amazon again.Once it was delivered I returned it and got a refund. The next day I bought the same book on Amazon again.Once it was delivered I returned it and got a refund. The next day I bought the same book on Amazon again.Once it was delivered I returned it and got a refund. The next day I bought the same book on Amazon again.Once it was delivered I returned it and got a refund. I printed out all the receipts and turned them into a book called Introduction to Microeconomics.I took the book and put it up for sale on Amazon.” Language: English