InDesign Practice

On InDesign i use a few tools the first one i used was the top button the left hand side which was the arrow. This allowes me to move image's about and also change the size of text boxes and image's. Once changing the size of the image you click the right hand button and go down to fitting then click fit content propotionally.
The sedcond button i used was the capital T on the left hand side which which creates text boxes to write what you want next to the images.