Presentations are an essential part of the business world, but all too often they're rote, joyless, cookie-cutter exercises in boredom. But don't despair: You don't have to become Robin Williams ...

A White House spokeswoman said Thursday that a controversial PowerPoint presentation that has attracted the interest of congressional investigators is not illegal but that it would not be released.

The White House prepared slides downplaying the virus’s effects on children and boosting the importance of reopening schools. The C.D.C. objected, and the presentation was never made public.