Search for a mycological group in your area online. If you’re in the U.S., search the directory of the North American Mycological Association. These groups promote the study of mushrooms, and many hold classes or other meet-ups to help educate the public. Many groups may even hold nature walks or other field events for people who want to learn more about foraging. Go to your local bookstore or an online retailer to purchase a mushroom field guide for your region. You can take the book when you go out foraging to practice identifying different mushrooms. It may also help you become more familiar with common edible and poisonous varieties. Ask the registrar at your local university about the possibility of auditing mycology classes. You can further develop your mushroom-identification skills and learn more about edible varieties of mushrooms. If your local university doesn’t have classes you can audit, ask your local mycological group what classes or resources they would recommend.

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Write a summary of the previous text in Vietnamese:
Tham gia nhóm nghiên cứu nấm. Mua sách hướng dẫn về nấm ở địa phương. Tìm các lớp học về nấm ở trường đại học.