How to be wel organized

When we have a big project, we have to seperate our work in many parts. For instance, my project I seperate in differents parts. I am woking with 4 books and some articles. As a result, it is impossible to every thing in the same time and in the last minute.Papers need to be organized, not only the papers but also we have to organize the also.More over, we can't work in the same time with books and articles. We should organized the date when we work with the book and Ithe date when we work with the articles. It is impossible to work in the same time with both.