If only the outer cover is cracked and the LCD panel still works, you may be able to replace just the cover. A good first step is to contact Canon directly for the replacement part, since they can supply the correct piece for your camera. Based on the community feedback, this is a reasonably DIY-friendly repair if you’re comfortable working carefully with small camera parts.

For protection afterward, a dedicated LCD protector is worth adding. One user specifically recommended a Giottos LCD screen protector. A protector can help reduce scratches and minor impact damage, though no thin screen protector can guarantee prevention of cracks from a hard fall.