Junie B is very upset when a boy in her class plans to invite everyone except her to his birthday party, but her grandfather helps her deal with the situation.
Through a misunderstanding, Junie B. thinks that her new baby brother is really a baby monkey, and her report of this news creates excitement and trouble in her kindergarten class.
Unable to compete with her friends' fancy clothes and running ability, irrepressible six-year-old Junie B. finds her own way to make the new boy at school like her.
Frustrated because the rules for her class's Pet Day will not let her take her dog to school, Junie B. Jones considers taking a raccoon, a worm, a dead fish, and other unusual replacements.
Junie, a spunky, sometimes exasperating, kindergartener, looks forward to winning lots of prizes at the school carnival, but a fruit cake was not exactly what she had in mind.
After her first trip to a beauty parlor Junie decides she wants to work there, and she practices on her bunny slippers, her dog, and herself with disastrous results.
Junie B. Jones has just turned six and is looking forward to her kindergarten graduation, but when grape juice stains the white gown she couldn't resist trying on, she is afraid graduation is ruined.