Logos is greek for logic and logos is used to show logic like data or statistics. The points are straight forward. You use facts to convince your audience rather than trying to appeal to the audiences emotions. For instance, if you write about a Nike shoe and say that they have the most comfortable shoes shown by statistics because it's really soft fabric then your audience will most likely be convinced into your argument. If you use logic and facts then your audience will be more convinced because facts cannot be proven wrong because they are true.
Memory is a book that we are reading at Whanaga by Margaret Mahy. Here's the summary for the book.
Jonnys in a bad way. after a night of trouble., he sets out to find his dead sisters best friend. But wandering through the deserted city late at night, he finds someone else instead - old Sophie West suffers from senile dementia, a brain disorder causing loss of memory and disorientation. She is reduced to living on her own in genteel but dreadful squalor - her only companions a mass of cats. As a temporary outcast himself, Jonny takes refuge with her.
Jonny came back from finding his dead sisters best friend which shows resilience after a bad incident. He feels sad because of his sisters death but he's still going through it and hasn't gave up.
