Toddlers begin to use the present progressive verb tense before they are two years old. While some children may have achieved mastery of this morpheme by 24 months, the age range of mastery of the present progressive-ing verb tense is between 19 and 28 months.
Superfudge is a children's novel by Judy Blume, published in 1980. It is the sequel to Tales of a Fourth Grade Nothing.
Irrational Exuberance is also the name of a 2000 book by economist Robert Shiller that analyzes the broader stock market boom that lasted from 1982 through the dotcom years. Shiller's book presents 12 factors that created this boom and suggests policy changes for better managing irrational exuberance.