I've been collecting old Penguins for a while now but my collection look pretty pitiful compared to these:

here.

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I really love the old paperbacks and would take a box full of these over the newer hardcover collection any day. I was trying to read them along with A Penguin a week which I have been following for quite a while now. If you haven't heard of her blog before go check it out, here. Her collection is mind blowing.