TITLE: Collection of conjectures and open problems in graph theory
QUESTION [21 upvotes]: Is there something similar to the Kourovka Notebook for graph theory (or anyway an organized, possibly commented, collection of conjectures and open problems)?

REPLY [2 votes]: A list of about 60 algorithmic problems pertaining to trees are given in the paper by Stephen T. Hedetniemi. Some of the discussion in the paper can be extended to questions on graphs of bounded treewidth.