gistfile1.txt

@interface PragBook : NSObject {
	NSString *title;
	NSString *author;
	NSMutableArray *chapters;
}

@interface Chapter : NSObject {
	NSString *chapterTitle;
	NSNumber *pageCount;
}
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-(void)createReport {
	NSLog(@"There are %@ chapters", [self valueForKeyPath:@"[email protected]"]);
	NSLog(@"The titles are %@", [self.book.chapters valueForKey:@"chapterTitle"]);
	NSLog(@"The longest chapter is %@ pages long", [self valueForKeyPath:@"[email protected]"]);
	NSLog(@"The average chapter length is %@", [self valueForKeyPath:@"[email protected]"]);
}