There are many differences:

1, different prices, 2, different quality

A genuine book is still published, and online shopping will not be much cheaper. But a genuine book is out of print, and the publication of this book is no longer available in the market, so the price will be sky-high. Because it is out of print, the price of this book has been speculated by the holder several times.

Most readers are uncomfortable. I bought a cheap book a few years late, but now I can't buy it, and I have been cheated several times!

At this time, some publishing societies printed more photocopied books. Photocopies are mostly pirated, and the paper is a little poor, but the content is basically the same as the original. Most of them don't have to pay copyright fees, so they are much cheaper. This not only satisfies the reader's needs, but also satisfies him to make money.

Photocopyed books are a little cheaper than genuine books. However, many short story lovers face novels with a collection mentality, so the photocopied version is not very popular with novel readers, because they feel uncomfortable and feel that they can buy genuine ones if they have more.

Therefore, for these out-of-print books, either for collectors' purposes, you have to spend a lot of money to buy the hyped out-of-print books, or wait patiently for a few years until the second and third editions of this book come out, or you can buy a photocopy online to relieve boredom, or waste your eyes reading e-books, or buy second-hand genuine old books, or borrow genuine books from the library.

Photocopies are printed in black and white except that the paper is a little rough, which is similar to the real one. So it depends on the purpose of the person who needs to buy books. In fact, the paper of genuine books sold by some bookstores is not so good.