1. Guitars are usually sold in musical instrument stores or piano shops.

2. Generally, music stores that sell guitars also have guitar teachers.

3. "Self-Study Acoustic Guitar in Three Months" by Liu Chuan is a very good self-study material.

4. It can be self-study. But it is not recommended to study on your own from the beginning.

Personal suggestions (for reference only):

1. Finally, you must have a teacher to give you guidance before getting started. It could be a friend who can play guitar. It can also be a professional teacher. The reason is simple. Avoid detours. Give you the correct practice method. Get started quickly.

2. It is best to sign up for a guitar training class first. Start with the beginner class → intermediate class → advanced class (here refers to the amateur class). Generally, each level class has about 10 lessons. Probably one class per week. It takes about 3 months of study to complete. Take one class per week. Then go back to the exercises taught by Teacher An. It should be almost enough to get started in basic level in about 3 months. After the elementary level, I mastered everything from getting started to reading music to playing. In the future, you can choose to enroll in an intermediate class or choose to study on your own.

3. If you want to learn professionally and systematically. Then go to a professional music school to study. But tuition fees are generally relatively expensive.

--------Hope it is helpful to you. Hope it will be adopted. Thanks.