Selling books online

Selling books online

I've got a *lot* of books, mostly ordinary science fiction paperbacks from the past few decades, that I want to sell. Have any of you tried selling books online? How did it go? Amazon/ebay/other? Is that amazon merchant thingy a good deal? I see a lot of books for sale online for less than a dollar--sometimes for a penny. Do those sellers make their profit on the postage and handling?
ID help

ID help

My livingroom

My livingroom

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Everything’s growing nicely

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First place of my own

Canopy

Canopy

recycle

recycle