2, the white book is initially because the book cover and the body of the paper used are white and named. It is mainly a kind of official report issued by governments on major affairs. White papers have become internationally recognized as official official instruments. The Blue Book usually represents the views of scholars or the academic views of the research team.
3. However, this is not absolute. Countries have their usual color of the document, respectively, the cover with white, it is called the White Book, such as China, the United States; cover with blue, called the Blue Book, such as the United Kingdom; there are also useful red (such as Spain), yellow (such as France) or green (such as Italy), respectively, called the Red Book, Yellow Book, Green Book. In fact, the color of the cover of the document used by a country can also have a variety of. For example, Japan's annual report on defense with white leather, called the White Book of defense, its annual report on foreign affairs with blue leather, called the Blue Book of diplomacy.