Grimlock ♥ Ultra Magnus

All $3.99 at Amazon, here: 

http://www.amazon.com/Transformers-Spotlight-Vol-Simon-Furman-ebook/dp/B00CTYEMCC/ref=sr_1_2?s=digital-text&ie=UTF8&qid=1401643971&sr=1-2

Furman was my favorite Transformers writer until I started reading James Roberts. I do suggest the spotlights if you're interested in this at all. 

http://www.amazon.com/Transformers-Autocracy-Chris-Metzen-ebook/dp/B0097EV2W0/ref=sr_1_117?s=digital-text&ie=UTF8&qid=1401644149&sr=1-117

Autocracy is wonderful.  I have it in paperback and love this volume.   

http://www.amazon.com/Transformers-Classics-Vol-ebook/dp/B00939ONMK/ref=sr_1_95?s=digital-text&ie=UTF8&qid=1401644127&sr=1-95

I haven't read this. I'm tempted, but don't like the classics as much as the current graphic novels. 

http://www.amazon.com/Transformers-Robots-Disguise-Vol-1-ebook/dp/B009F5Y0MU/ref=sr_1_100?s=digital-text&ie=UTF8&qid=1401644137&sr=1-100

Love this series, but not as much as I love the next series. 

http://www.amazon.com/Transformers-More-Than-Meets-Vol-ebook/dp/B0097EV5H2/ref=sr_1_98?s=digital-text&ie=UTF8&qid=1401644137&sr=1-98

If you're going to buy one of these, it should be this one.   This is the most amazing series I've read yet.