Science as knowledge is cumulative. It is built upon that which was discovered by those that came before. The profession of science relies on getting (and giving) credit where it’s due and demonstrating you know what the heck you are talking about (1).
Good nonfiction books (not just science books) have references to show that the authors have based their writings on the foundation of what others have established and they acknowledge those authors for their work.
I use a list of references in a book or paper to judge the quality of the research. A nice comprehensive list not only shows that the author was diligent about citing sources for their info (i.e., was a careful researcher), but also tells me that he/she has made an effort to become familiar with the literature that’s already out there. This process is called literature review and it’s a primary step in doing scientific research. It sort of makes you “well versed” which you ought to attempt to be before writing a book of your own. Continue reading