Hi,

I am using the Manhattan Gmat books to study, although I am not in a course.

I was wondering if there is a summary of all the items that are listed in all the books that we should be memorizing?

Thanks,
~Neha

no such animal. the books are fairly concise and to the point; there's not a lot of unnecessary embellishment.
in a manner of speaking, one might say that, yes, there is such a summary - but that "summary" is the content of the books themselves.

if you want a quick high-level review, you may find it useful to go through the HEADINGS of all the little sub-sections of each chapter, and make sure that you remember the content and relevance of each heading; that'd be a good start. if you see any headings whose meanings escape you, then you can check them out in detail.