Why am I passionate about this?

I am a picture book author living in Los Angeles with my husband and two small children. Through my work, I hope to make children laugh, to inspire curiosity, and to create a magical world readers can lose themselves in time and time again.


I wrote

How to Return a Monster

By Charlotte Offsay, Rea Zhai (illustrator),

Book cover of How to Return a Monster

What is my book about?

In this hilarious and heartfelt book about sibling relationships, a girl can't believe it when her parents bring home a…

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The books I picked & why

Book cover of The Littlest Viking

Charlotte Offsay Why did I love this book?

Sven is the littlest and loudest attention-demanding Viking until a new warrior princess arrives. Sven’s baby sister is even louder and more attention-demanding than Sven and no one has time for his stories anymore… that is until Sven dreams up the perfect solution for all. Filled with heart and humor this book celebrates imagination, Vikings, storytelling, and new siblings.

By Alexandra Penfold, Isabel Roxas (illustrator),

Why should I read it?

1 author picked The Littlest Viking as one of their favorite books, and they share why you should read it. This book is for kids age 4, 5, 6, and 7.

What is this book about?

A hilarious story about what happens to the littlest and loudest Viking when an even littler and louder Viking arrives, perfect for fans of The Princess and the Pony and I Don't Want to Be a Frog.

Sven might be the littlest Viking, but he has no trouble making himself known. He has the loudest warrior cry and the fiercest set of teeth. He loves to pillage and plunder. But there's a new kid in town--a warrior princess, who is smaller than Sven and even louder. What's a little Viking to do?

"Penfold folds in fun ancient analogues to tried-and-true…


Book cover of Mia Moves Out

Charlotte Offsay Why did I love this book?

When Mia’s new brother arrives, she finds herself without a place of her own – Brandon’s stuff is everywhere! She moves from place to place around the house, but nowhere feels quite right. In the end, Mia comes to find that having her own space doesn’t have to mean moving away from Brandon. This book beautifully opens the door to conversations around adjusting to a new sibling, sharing, and personal space. I also love that it incorporates adoption without making that the focus point of the story.

By Miranda Paul, Paige Keiser (illustrator),

Why should I read it?

1 author picked Mia Moves Out as one of their favorite books, and they share why you should read it.

What is this book about?

A sweet sibling story about one fed-up big sister who wants to find a space of her own, perfect for fans of Ashley Spires's The Most Magnificent Thing.

Mia loved her big, bright room . . . until she had to share it with her new brother. With Brandon's toys, books, and even underwear taking up space, Mia has finally had it. "I'm moving out!" There are lots of new and interesting spaces she could settle into--the bathroom, the basement, even a pillow fort. But something is always missing. What could it be? Tackling the oh-so-relatable topic of finding a…


Book cover of His Royal Highness, King Baby: A Terrible True Story

Charlotte Offsay Why did I love this book?

When King Baby arrives, a young princess is forced to share her kingdom. The princess protests her new brother and his attention-demanding ways. She plots to break the spell King Baby holds over the rest of the kingdom until she discovers that perhaps there are benefits to co-ruling after all. Filled with humor, this voice-y princess is sure to be a hit with young rulers everywhere.

By Sally Lloyd-Jones, David Roberts (illustrator),

Why should I read it?

1 author picked His Royal Highness, King Baby as one of their favorite books, and they share why you should read it. This book is for kids age 4, 5, 6, and 7.

What is this book about?

Once upon a time there was a happy family: A mum, a dad, a gerbil, and the most beautifulest, cleverest, ever so kindest Princess Marianna. Until one horrible no good day when a new ruler was born...

From two of the most revered picture book creators working today comes a unique home-grown fairy tale about a little girl with a new baby brother. Marianna, the most beautiful, ever so kindest princess, lives happily with her mum, dad and gerbil. Happy, that is, until the new baby comes along. His Royal Highness King Baby is so smelly. He's so noisy. And…


Book cover of The New Small Person

Charlotte Offsay Why did I love this book?

Elmore Green is perfectly happy being an only child and likes his life just the way it is, so when the ‘new small person’ arrives and throws everything out of line, Elmore Green wishes they would go back to wherever they came from. One night when Elmore has a nightmare though, everything changes, and he begins to find that there are upsides to having a sibling after all. With heart and humor, The New Small Person embraces the complex emotions surrounding becoming an older sibling and shows that while sometimes a sibling bond takes a little time to form, it can be pretty spectacular.

By Lauren Child,

Why should I read it?

2 authors picked The New Small Person as one of their favorite books, and they share why you should read it. This book is for kids age 4, 5, 6, and 7.

What is this book about?

Elmore Green started life as an only child, as many children do. He had a room all to himself, and everything in it was his. But one day, everything changed.
This brand new picture book from the hugely talented Lauren Child about the arrival of a new sibling is bound to be a hit with parents and children. Told with humour and with wonderfully stylish artwork, this is Lauren Child at her absolute best.


Book cover of The Bossier Baby

Charlotte Offsay Why did I love this book?

Boss Baby is used to being in charge but when his baby sister arrives, it is clear that there is a new CEO in town, and he is not happy about the perks she is getting that he never got. Boss baby feels replaced and ignored until an unexpected move from the new CEO shows that perhaps there is room for two CEOs after all. With a loud fun voice and adorable artwork, this is a hilarious and heart-squeezing read.

By Marla Frazee,

Why should I read it?

1 author picked The Bossier Baby as one of their favorite books, and they share why you should read it. This book is for kids age 4, 5, 6, and 7.

What is this book about?

Change is in the air-the Boss Baby's staff has stopped taking his direction! It seems that there is a new CEO in town; from the moment she comes home, Boss Baby's little sister is extremely loud and is demanding all sorts of corporate perks he never got. Can the Boss Baby and his staff get used to the new corporate structure?


Explore my book 😀

How to Return a Monster

By Charlotte Offsay, Rea Zhai (illustrator),

Book cover of How to Return a Monster

What is my book about?

In this hilarious and heartfelt book about sibling relationships, a girl can't believe it when her parents bring home a fussy, stinky, attention-stealing monster. She hatches a plan to send it back to where it came from, with hilarious results . . . and along the way, she learns that maybe monsters--and baby siblings--aren't so bad after all.

You might also like...

Curiosity and the Cat

By Martin Treanor,

Book cover of Curiosity and the Cat

Martin Treanor Author Of The Logos Prophecy

New book alert!

Why am I passionate about this?

Author Illustrator Reader Jester Quantum physics buff

Martin's 3 favorite reads in 2023

What is my book about?

Curiosity is certain she saw fairies at the bottom of the garden. Little does she know . . . they saw her first.

Emotionally abandoned by her mother and infatuated by a figurine of a fairy ballerina she discovers in an old toy shop, eight-year-old Curiosity Portland steals the figurine, unleashing strange and frightening happenings around her home, which, in turn, reveals a disturbing family history. 

An ominous tale of faerie folk.

Curiosity and the Cat

By Martin Treanor,

What is this book about?

Curiosity is certain she saw fairies at the bottom of the garden. Little does she know . . . they saw her first.

Emotionally abandoned by her mother and infatuated by a figurine of a fairy ballerina she discovers in an old toy shop, eight-year-old Curiosity Portland steals the figurine, unleashing strange and frightening happenings around her home, which, in turn, reveals a disturbing family history.

An ominous tale of faerie folk.



5 book lists we think you will like!

Interested in sibling, brothers, and Vikings?

Sibling 228 books
Brothers 113 books
Vikings 116 books