Which websites allow to preview books?

Question

I'm interesting in knowing which websites or online shops allow previewing books (random pages) before purchasing them. I know that Amazon and Google books do this, but what other websites are there (I'm asking in case neither Amazon nor Google allow the preview of a particular book for instance). 

Answer 1

Favourite answer

Sometimes you can message sellers on eBay and ask them to take a photo of the inside of the book before you commit to buying