In case you do not know the proper method for attaching a picture wire to the back of your canvas, here is a video with all the details. The standard rule is to put your wire at 1/3 of the length of the painting. This helps keep all similar size artworks homogenous. If you have a supremely wide thin piece this is not the rule to use-- I will make another video for that!
Hope you all are having a great week so far!