The document summarizes chapters about culture shock and adaptation from a book on international students' challenges. It describes the environmental, linguistic, academic, and social difficulties students face. Culture shock symptoms include anxiety, homesickness, and isolation. Two narratives illustrate how loneliness and isolation can trigger depression or wild imagination in students experiencing culture shock. The stages of cultural adaptation are explained as an initial "honeymoon" period, followed by a "crisis" as differences are noticed, then "recovery" and gradual adjustment as understanding and language skills improve. Full adjustment is achieved when students feel comfortable and accepted in the new culture.