Why does Gilderoy Lockhart create a magical book filled with his achievements in "Harry Potter and the Chamber of Secrets"?
To enhance his celebrity status and market his own image.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> Why does Gilderoy Lockhart create a magical book filled with his achievements in "Harry Potter and the Chamber of Secrets"? [/INST] To enhance his celebrity status and market his own image. </s>