I just saw this today, and thought it sounded right up my alley. I'm definitely guilty of either just reading the first book in a series, or the first book of a companion series. I really hate myself for this because then I never find out what happens to those characters I enjoyed in the first book.
These are a few of the series I have been meaning to finish. Hopefully I can knock out 1 or 2.
Some of those series
Strange Angels by Lili St. Crow
-There are 5 books total, and I read the first one a few years ago.
Wither series by Lauren DeStefano
- I read this one a few years ago as well. I'm not sure I really enjoyed it, but I want to see if it can redeem itself.
Matched Series by Ally Condie
- I read Matched about a year ago, and I somewhat enjoyed it so I'm curious to see how it turns out.
Halo Series by Alexandra Adornetto
-It seems like a lot of people had problems with this series with the first book, it was a bit preachy if I remember correctly, but I do want to finish it.
The Unbecoming of Mara Dyer by Michelle Hodkin
- I really enjoyed this one, but for some reason I never picked up the other two books, but now that I have the full series I'm ready to finish it up.
The Unbecoming of Mara Dyer
The Evolution of Mara Dyer
The Retribution of Mara Dyer
Personal Demons by Lisa Desrochers
-I enjoyed the characters in Personal Demons so why I never finished it I'm not sure.
The Wolves of Mercy Falls by Maggie Stiefvater
-I really love the first book. Sam and Grace were such a cute couple.