Offer your thoughts or opinion on the input financial query or topic using your financial background.

Is Investments by Bodie just an expanded version of Essentials of Investments?
They are actually both undergraduate texts; however, Investments is FAR more complex.   Essentials of Investments really waters down the statistical and mathematical notation while Investments does not.  Investments also has an entire section (4-5 chapters) called options, futures, and other derivatives while Essentials of Investments does not.   [Of course, if you want to learn about options, futures, and other derivatives, there is a seminal book by John Hull with that exact title.] That notwithstanding, neither book is sophisticated enough to be considered a true graduate school textbook in quantitative investment theory.  No grad schools worth their salt are going to rely too heavily on Investments in a specialized finance curriculum.   It's a great book to start out, though.