Please tell me the differences between shifts and movements in demand through illustration.
Of course, we cannot provide you with an illustration on this site. If you will follow the amosweb link below, you can see an animated illustration of a shift in a demand curve.
When we talk about a shift in demand, we are talking about a movement of the demand curve -- it can move either left or right. The demand curve has shifted when there is a different quantity demanded at the same price. So a shift in demand is when consumers are willing to buy more or less of some good or service than they were before at the same price.
By contrast, a movement along a demand curve is caused by a change in price. Here, consumers are willing to buy more or less, but it is at a different price.