Window menu lets you arrange your open documents, view different Artboards. For adjusting them, arrange tool is used.
In arrange there are number of options available to arrange images. Tile all vertically arrange all images vertically. Tile all horizontally will arrange images horizontally.
Same way 2-up horizontal, 2-up vertical, 3-up horizontal, 3-up vertical, 3-up stacked will arrange images as their name suggests. Also, example is shown for all mentioned arrange styles.
Benefit of arrange is that, you can work on many Artboards at the same time. Using arrange tool, you can have seamless and efficient workflow.
Have a friend to whom you would want to share this course?