How to scan the contents of precious books on the computer, and what brand of scanner is easy to use?

If you want to scan books specially, I suggest you use a portable scanner, preferably made in the United States, usually around 300 yuan. The maximum range is A3 paper, and two scanned A4s can be merged on the computer. It's just that the portable scanner is too tired. I don't know what you think. If you don't want to open the book, this is the best choice. I use the brand of golden neon. If you buy it yourself, the scanning port of the scanning element is the worst among the three CIs, but it is not bad. Medium-sized CCDCMOS is the best and the highest price, so you must pay attention when buying it.