The challenge? There is no official solution manual published by the author. This gap has led to a thriving ecosystem of crowdsourced and institutional solutions.
Because official resources are scarce, consider building your own annotated solution set. Here is a semester-long strategy: Graph Theory By Narsingh Deo Exercise Solution
: Coloring, Covering, Partitioning (Ch. 8), and Directed Graphs (Ch. 9). The challenge
Connectivity is the focus here. You will learn how to identify weak points in a graph. Partitioning (Ch. 8)