Reading on paper is an old school way to annotateand highlight the most interesting elements For a scientist, reading is a must responsibility in the modern world of information, this task allows us to update the state of the art of the current research. For example, the objective of my work is to reproduce and improve antimony sulfo-selenide thin-film solar cells. Therefore, the first thing I did before experimental research It was to read the updated literature. As I am in touch with the author of the paper of interest I asked him about it's last published paper where their group develops Sb-S-Se…