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<title>About 1D barcodes</title>
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<p>Traditional barcodes, such as those printed on product packaging, are also known as <em>one
dimensional barcodes</em>. There are several types commonly used, including UPC and EAN. Most look
similar to this:</p>
-<center><p><img src="../images/big-1d.png"></p></center>
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<p>These 1D barcodes contain a unique code which typically describes a product, like a CD or a book.
You can look this code up on the internet to find prices, reviews, and more.</p>
<p>If you scan a book, you can also search the contents of the book for a word or phrase, and find