Jennifer L Holm

Ellie's scientist grandfather has discovered a way to reverse aging, and consequently has turned into a teenager--which makes for complicated relationships when he moves in with Ellie and her mother, his daughter.

'It's summer and Sunny is bored. Most of her friends are out of town. Her mom wants her to babysit way more than Sunny wants to babysit. There's nothing good on TV. The only cool place that's cool (in a not-boring sense) is the community pool. Sunny loves going there - and loves it even more when she's offered a job at the snack shack. Soon she's flinging fries and serving frozen ice cream treats - with the assistance of the very sweet boy who works...

"Summer's over, and it's time for Sunny Lewin to enter the strange and unfriendly hallways of ... middle school. When Gramps calls her from Florida to ask how she's doing, she always tells him she's fine. But the truth is that Sunny is NOT having the best time. Not only is the whole middle school thing confusing, but life at home is confusing, too. Sunny misses her brother Dale, who's been sent away to boarding school. But when he comes back on vacation,...

Sunny is starting to understand the ins and outs of middle school... but she still feels more out than in. It's about classes or homework, really. No, it's the fact that most kids have a thing they do outside of class. Like football or track or cheerleading. Sunny isn't quarterback material, and her cheer attempts are... not the best. So what can she do? When Sunny's friend Arun says he wants to start a debate club, she's not really sure what he...

When thirteen-year-old Ellie's Grandpa Melvin, a world-renowned scientist in the body of a fourteen-year-old boy, comes for an extended visit, he teaches her that experimenting--and failing--is part of life.--

Newbery Honor–winning, New York Times–bestselling, and as full of fun and adventure as it is of deeper family issues.
 
School’s out for summer, and Penny and her cousin Frankie have big plans to eat lots of butter pecan ice cream, swim at the local pool, and cheer on their favorite baseball team—the Brooklyn Dodgers! But sometimes things don’t go according to plan. Penny’s mom doesn’t...

After finally getting a cell phone, Babymouse tries to increase her popularity in middle school by becoming the queen of social media.

"Babymouse tries out for the middle school play, but instead of landing the lead role, she gets stuck with playing a clown with one line of dialogue"--

Chilly the snowflake, who is scared of everything, slowly learns that sometimes, to have fun, it is important to face fears and try something new.

"Babymouse becomes a influencer after she tries out a new whisker style and posts a tutorial online"--