These three Harvard Business Review books aim to help you inspire action, engage your audience, and sell your ideas, in addition to improving your visual communication skills:

1) HBR Guide to Persuasive Presentations by Nancy Duarte.

Terrified of speaking in front of a group? Or simply looking to polish your skills? No matter where you are on the spectrum, this guide will give you the confidence and the tools you need to get results. 

2) Good Charts by Scott Berinato.

A good visualization can communicate the nature and potential impact of information and ideas more powerfully than any other form of communication. Building good charts is quickly becoming a need-to-have skill for professionals. In "Good Charts," dataviz maven Scott Berinato provides an essential guide to how visualization works and how to use this new language to impress and persuade.

3) The Good Charts Workbook by Scott Berinato.

If you're ready to create your own "good charts"--data visualizations that powerfully communicate your ideas and research and that advance your career--this is the hands-on guide you've been looking for.