Studies and researches have shown that initial five years of a child are the most critical ones from the point of view of learning. Their capacity to learn new things is at its highest ebb during this period. Children of this age group can be compared to a piece of sponge that is ready to absorb any liquid that it comes across. These are the building years for children and we need to use this period for giving them rock solid foundation that can help them in building their mansion of life upon it in a way that it becomes an example for everyone else to follow.
The variety of them that are offered ensures that children of various ages can find something that they would be content with. In fact, you may feel good about composing a list of great sites where various online printable coloring pages can be found. The other option is just to type specifically what you are looking for into a search engine and it will bring up relevant pages to get it.