How to develop these skills?

I was reading a book where it was mentioned of a bad employee lacking in the skills for office work organization (like filing etc), presentation skills (business presentation to like delegates), event planning, mulitasking etc. So instead of being one of such employees I want to muster those skills myself to avoid workplace disaster. How can I learn those skills? Is there any books or other stuffs that I should resort to? Any help would be highly appreciated.