Summary of the laughing and funny book of Juha

"The funny is not few, but those who improve the laughter are few." Laughing has several types that multiply and differ according to its causes. We laugh at pleasure and contentment, laugh at mockery and contempt, laugh at joke and singing, and laugh at glory and enmity. There is a long list that is difficult to limit, as laughter may be the result of many feelings, and not only with joy.