What are good ways to visualize set of likert responses?

For example, a set of items inquiring about the importance of X to one's decisions about A, B, C, D, E, F & G? Is there something better than stacked bar charts?

• What should be done with responses of N/A? How might they be represented?
• Should the bar charts report percentages, or number of responses? (i.e. should the bars total the same length?)
• If percentages, should the denominator include invalid and/or N/A responses?

I have my own views, but I am looking for other people's ideas.

What are good ways to visualize set of Likert responses?

For example, a set of items inquiring about the importance of X to one's decisions about A, B, C, D, E, F & G? Is there something better than stacked bar charts?

• What should be done with responses of N/A? How might they be represented?
• Should the bar charts report percentages, or number of responses? (i.e. should the bars total the same length?)
• If percentages, should the denominator include invalid and/or N/A responses?

I have my own views, but I am looking for other people's ideas.