Alex described about Professor Lineberger's academic career and also mentioned about some part of the scientific contribution and research. The academic career was well-organized in a time frame, which contains why he became interested in this field, his education, and professional experience. Also, he summarized well about Professor Lineberger's research, with the explanation of the photoelectron imaging and the technique that was used. It will be better if he states clearly what Professor Lineberger's major in his undergraduate and graduate school, and includes what are the researches he focuses nowadays. Overall, it is really good description!