The advantage is that it is easy to read, and it can be read directly and arbitrarily, and can be read on any occasion; Easy to carry and communicate; Is convenient for batch printing and has low cost.

Disadvantages are large volume, heavy weight, low information storage density and large collection space.

Printed literature is a traditional literary form with a long history. Including lead printing, mimeograph, offset printing and other products, is the most basic means for human beings to store and disseminate knowledge and information.

It can be read without any equipment, and can also be marked, which conforms to people's reading habits and is convenient to carry and circulate. These advantages are irreplaceable by other information carriers, but the disadvantages are large volume and large space occupation.

Summary:

Literature review is a style different from research papers, which is composed of understanding, sorting, comprehensive analysis and evaluation after researchers read the literature on a certain topic in advance.

Searching and reading literature is an important prerequisite for writing a review. The quality of the review depends largely on the author's mastery of the latest literature related to this topic. If you don't do a good job in literature retrieval and reading, you will never write a high-level summary.

A good literature review can not only lay a solid theoretical foundation and provide an extension opportunity for the writing of the next dissertation, but also show the author's comprehensive ability to summarize, analyze and sort out the existing research literature, thus helping to improve the overall evaluation of the level of the dissertation.