Study for Idiots is a comedy cross talk sketch, its full name is "Study for Idiots". It is a sketch written and performed by Cai Weili. It has become one of the must-play programs for duo actors. It was created in 2014. Sketch is a small work of art, which generally refers to short art of speaking and acting. The basic requirements are clear language, natural form, and the ability to fully understand and express the personality and language characteristics of each character. The most representative one is comedy sketch.