autograph:a famous person's signature, especially when somebody asks them to write it (名人的)亲笔签名
Could I have your autograph? 我能请你签个名吗?
poster:a large picture that is printed on paper and put on a wall as decoration 巨幅装饰画
posters of her favourite pop stars 她所喜爱的流行音乐歌星的大幅画片