Introduction to lithography
Khan Academy
The link address is: https://www.khanacademy.org/humanities/special-topics-art-history/creating-conserving/printmaking/v/moma-intro-to-lithography
The link address is: https://www.khanacademy.org/humanities/special-topics-art-history/creating-conserving/printmaking/v/moma-intro-to-lithography