(Amazing how much reading I can get done over Xmas break)
The Wheel of Time by Robert Jordan (and Brandon Sanderson) is a series I've been reading since it was on Book 3 when I was in High School. It relates the story of a boy (later the man) named Rand Al'Thor and his long journey to become the 'Dragon Reborn' and fight the 'Dark One' in the "Last Battle'.
Primary author Robert Jordan passed away before the series was finished but spent the last months of his life coaching a co-author (Sanderson) to finish the series for him. While you can definitely feel the difference in writing styles, Sanderson manages to fill those extra large shoes at least to a majority degree.
Book 14 concludes the series and ties together the dozens of different elements that have been presented throughout the previous 13 volumes and 1 prequel although there is still some definite character development going on throughout this huge (over 900 pages) book. Most of it, however, is focused on the climactic 'Last Battle' between the forces of Light and the Dark One. Think Ypres for a visualization. The conclusion is quick. While many series give a 'This is what happened after' chapter, often occurring far in the future, A Memory of Light does not, leaving the future very open ended (although I don't think there will be any more).
If you've read this series, this is a must. I've you've not read this series, I would recommend it (although the middle books tend to draw out).