Pastels are usually available in many types, each with its own unique features. The most common types of pastels that are available on the market include soft, hard, oil, pen and pencil pastels. The sole purpose of pastel products is…

Today, parents and educators observe with pride and wonder children who still can not speak or walk, but with skill and security distinguish the remote control from the air conditioning and quickly turn on PCs and mobile phones, identifying without…