The following question was closed because it was "too broad".
What are the differences between Jacobson's "Basic Algebra" and "Lectures in Abstract Algebra"?
The question asks (and I paraphrase) "What is the difference between these two books by the same author on basically the same subject?" Yes, okay, this is far too broad. I mean one is in two volumes while the other is in three. That is one difference. Another difference is the page count, and of course the title of the first section is different...and...and...and...
Of course, the OP wanted to know why there were two books by the same author on the same subject. Perhaps they also would like a bit of information on prerequisites and which would be better to read first. They didn't ask that, but we can read between the lines and are intelligent people. It might also be useful to put in a couple of sentences assuming they are a graduate student or already well-read. However, closing it is not useful to anyone.
So, my questions are the following.
Are people not allowed to ask questions on books any more? And do we no longer give OPs a degree of grace with respect to posing imperfectly posed questions? That is, are we no longer able to read between the lines?...