Using information visualization techniques to manage work is known as Visual Management. An Information Radiator (term created by Alistair Cockburn) is a publicly displayed artifact that conveys project information.
The Task Board is Key
In Scrum and other agile approaches the task board is the key Information Radiator and it is an example of using visual management techniques to enhance team communication and effectiveness.
Blog Post to Check
The blog post from Xavier Quesada Allue explains how a carefully designed task board, created with readability and usability in mind, can be used to drive planning and communication, to such an extent that even those that are not on the team can gain valuable insight into a project just by reviewing it.
I found this piece quite useful, and if you read it, it may help you answer the question, is my taskboard helping or hurting?