A bread knife has a long blade with a serrated edge designed to cut bread without tearing or compressing it.
Bread knives are important to have around the kitchen.
The best way to illustrate the usefulness of a bread knife is to try to cut bread with a normal, non serrated knife. When using a normal knife on bread the end result is normally the bread being pushed and smooshed down instead of getting actually cut.
Since a normal knife does not have a serrated edge, its edge will just slide along the bread and as you press more all you will accomplish is a flatter loaf.
This is true for any soft food with a smooth skin. Tomatoes for example are another food where a serrated edge works and a non serrated edge does not. Bread knives are great for slicing melons as well.
When choosing a bread knife choose a brand you trust and remember you don't need to spend a million dollars for a good one. The Oxo brand bread knife that we have featured in the images on this page is a high quality and economical choice.