As the article above makes plain, the calibre of your presentation skills can have a profound impact on your personal success; whatever your chosen career. The sooner you develop these skills the better. The good news is, it's never too late.
It may be harder to learn new language as you get older or suddently take up the piano. But nearly all of us have the ability to dramatically improve our presentation skills and to get regular, if not daily, practice in the workplace.