The content is more or less the same, but the pirated version may lack paper, resulting in a lack of content.

Differences other than price:

1, copyright or not

Pirated books are not copyrighted and are illegal, infringing on other people's copyrights.

Genuine books are legal and have the relevant authorization.

2. Different handwriting clarity

The handwriting of pirated books is fuzzy and cloudy, and some fonts are hard to read, which affects reading.

Genuine books have clear handwriting and are easy to read.

3. Different packaging covers

The packaging of pirated books is generally more colorful and the paper is thinner.

The packaging of genuine books is reasonably arranged, and the quality of the paper is better and thicker.

Baidu Encyclopedia - Pirated Books