The book can be purchased in online bookstores, physical bookstores, author's signature editions, etc.

1. Online Bookstore: You can search for "Ocean and Human Society" in Amazon, Dangdang and Taobao online bookstores, and then choose the seller and payment method to buy.

2. Physical Bookstore: You can check whether there is this book in the local bookstore, bookstore and library, and then buy it.

3. Author's signature version: If you want to buy the author's signature version, you can contact the author or publishing house to buy it.