Do you want to learn guitar, folk guitar or classical guitar? And what book is better to learn to play guitar? Please help me!

If conditions permit, it is recommended to study classical music. Folk guitar is a relatively leisure musical instrument evolved from classical music. There is no special official standard and it belongs to becoming a monk in the wild.

An inappropriate example of the relationship between the two can be understood as electronic organ versus piano.

Learning classical guitar well will form a good foundation and habit in all aspects, and then you can adapt quickly no matter whether you touch folk guitar or electric guitar again. You may develop all kinds of strange bad habits and small problems by using folk guitar directly. You can watch online videos, but everyone's posture is very standard for classical guitars, and there is no unified standard for folk guitars.

Moreover, the classical guitar is a nylon string, which has less burden on beginners' fingers than steel strings and copper strings, and is easier to practice and persist for a long time.

Finally, it is not recommended to teach yourself classical guitar. Even if you are looking for a book to read, you must have professional teachers to guide you. At the beginning, the foundation is very important. At the advanced stage, you can find some books to further improve yourself.