Highlighting a benefit to the reader should be done in the of the message.

The answer to this question is Close
The upper part of the message is commonly used by the authors to give his/her thanks to the people that they felt have contributed greatly to their books.
The benefit for the readings should only be briefed slightly before the readers enter the actual content of the books. 

This question is an opinionated one, and we don’t know anything about the module or anything, thus we can not answer it. but if you are having trouble on what it is asking basically it is just asking to (using your knowledge on the topic) say which topics you were most interested and which were the most challenging.hope this : p