Why do magazines have shrink wrappers?

And I don't mean those on the top shelf!

Answer: Because if you skim the content on the newsagent's shelf, you'll find it's not what you were led to believe from the cover.

For the first time this month I bought Black and White Photography magazine. Quite prominently on the cover it stated "45 B&W digital papers for you to choose" - I thought how useful, a commentary that I'll be able to use as a reference.

There was a free supplement . "Printing for Digital Photographers" - "Features both Adobe Photoshop and Lightroom".

So what was the problem? Well, the Digital Paper article turned out to be a product listing, one product per line, with less information on the qualitative aspects of the papers list than you'll find on a retail website. And the supplement was frankly useless. It was a puff for a book, contained NO content for Lightroom users but one tutorial on Apple Aperture!

I find this more and more with magazines. Misleading information on the cover - and then the more secret the content, the more it is likely to disappoint.