MPLS-Enabled Applications: Emerging Developments and New Technologies by Ina Minei and Julian Lucek. There are a lot of books out there on MPLS services, but th

MPLS-Enabled Applications: Emerging Developments and New Technologies by Ina Minei and Julian Lucek. There are a lot of books out there on MPLS services, but this one stands out for me because of the way it is written: the subject matter is clearly explains some very complex topics in a way that even a beginner network engineer could grasp, while not being a wordy tome that you never get around to finishing.