Cool Cub Publishing

Books that help kids grow up confident

Puberty, safety, big feelings, money and music - explained the way kids actually understand.

36,000+

copies sold

  • Rated 4.6 stars by 900+ readers on Amazon
  • Multiple #1 Amazon Best Sellers
  • Recommended by therapists & teachers
Find the right book
The Only Girls' Guide to PubertyThe Only First Period GuideThe Only Complete Girls' Guide (3-in-1)The Only Boys' Guide to PubertyThe Only Complete Boys' Guide (2-in-1)Safety Skills Unlocked!Ready, Steady, Brave!Anger Management Workbook for KidsThe Only Money Skills GuideInspirational Baseball Stories for KidsThree Blind Mice: Easy Piano Songs for KidsEasy Christmas Piano Songs for Kids4 Weeks to Gentle Parenting
Leo, a detective character from the booksElsa, a detective character from the books

Parents' favourites

Start with our best sellers

Cover of The Only First Period GuideAmazon #1 Best Seller

The Only First Period Guide

Ages 8-12

4.7 stars · 179 ratings

"Her doctor recommended this book"
- verified Amazon review
Get it on Amazon
Cover of The Only Girls' Guide to PubertyAmazon #1 Best SellerJan 2025

The Only Girls' Guide to Puberty

Ages 8-12

4.4 stars · 190 ratings

"Empowering girls to embrace their bodies with confidence"
- C.T Chan, teacher
Get it on Amazon
Cover of The Only Boys' Guide to PubertyAmazon Best Seller

The Only Boys' Guide to Puberty

Ages 8-14

4.5 stars · 252 ratings

"Helped him to understand his mood changes"
- verified Amazon review
Get it on Amazon
Cover of Anger Management Workbook for KidsAmazon Best SellerJun 2024

Anger Management Workbook for Kids

Ages 6-12

4.7 stars · 76 ratings

"Wonderfully playful and engaging"
- Caitlin Sigouin, Registered Social Worker & Therapist
Get it on Amazon

For girls

3 books
Cover of The Only Girls' Guide to PubertyAmazon #1 Best SellerJan 2025

The Only Girls' Guide to Puberty

Ages 8-12

4.4 stars · 190 ratings

Body changes, feelings and friendships - everything she's too shy to ask.

Get it on Amazon
Cover of The Only First Period GuideAmazon #1 Best Seller

The Only First Period Guide

Ages 8-12

4.7 stars · 179 ratings

Calm, clear answers so her first period feels normal, not scary.

Get it on Amazon
Cover of The Only Complete Girls' Guide (3-in-1)

The Only Complete Girls' Guide (3-in-1)

Ages 8-12

4.7 stars · 11 ratings

Puberty, first periods and money skills in one illustrated book.

Get it on Amazon

For boys

2 books
Cover of The Only Boys' Guide to PubertyAmazon Best Seller

The Only Boys' Guide to Puberty

Ages 8-14

4.5 stars · 252 ratings

Voice changes, body odour, mood swings - explained without the awkwardness.

Get it on Amazon
Cover of The Only Complete Boys' Guide (2-in-1)

The Only Complete Boys' Guide (2-in-1)

Ages 8-14

4.6 stars · 20 ratings

Puberty and money skills for boys, in one illustrated book.

Get it on Amazon

For all kids

5 books
Cover of Safety Skills Unlocked!

Safety Skills Unlocked!

Ages 8-12Safety

27 real-life cases to spot red flags and know when to get help.

Cover of Ready, Steady, Brave!Co-created by kids

Ready, Steady, Brave!

Ages 5-11Safety

A calm emergency plan for families - written by two kids.

Cover of Anger Management Workbook for KidsAmazon Best SellerJun 2024

Anger Management Workbook for Kids

Ages 6-12Feelings

4.7 stars · 76 ratings

50+ fun activities to turn big angry feelings into calm.

Get it on Amazon
Cover of The Only Money Skills Guide

The Only Money Skills Guide

Ages 8-14Money

4.7 stars · 34 ratings

Saving, spending and earning - money skills for a secure future.

Get it on Amazon
Cover of Inspirational Baseball Stories for Kids

Inspirational Baseball Stories for Kids

Ages 8-12Sport

4.9 stars · 35 ratings

25 Hall of Famers and their lessons on resilience and grit.

Get it on Amazon

For music lovers

2 books
Cover of Three Blind Mice: Easy Piano Songs for KidsAmazon #1 Best SellerDec 2024

Three Blind Mice | Easy Piano Songs for Kids

Ages 4-10Music

4.8 stars · 70 ratings

70 nursery rhymes in 5 easy levels, with video tutorials.

Get it on Amazon
Cover of Easy Christmas Piano Songs for Kids

Easy Christmas Piano Songs for Kids

Ages 4-10Music

4.1 stars · 15 ratings

30 holiday songs with lettered notes and play-along videos.

Get it on Amazon

Free play-along tutorials on our YouTube channel

For parents

1 book
Cover of 4 Weeks to Gentle Parenting

4 Weeks to Gentle Parenting

For parentsParents

4.9 stars · 66 ratings

Calm the chaos and reconnect with your kids in 15 minutes a day.

Ratings from Amazon, November 2026.

Real reviews

Loved by parents and professionals

She has read this book cover to cover on multiple occasions and takes comfort from it.
Bak9Verified Amazon purchaseThe Only First Period Guide

4.6 out of 5 from 900+ Amazon ratings

Recommended by therapists, teachers and specialists

Promotes empowerment and self-efficacy

"What makes this workbook stand out is its balance between providing information on self-awareness and self-regulation while also offering fun and engaging activities. I especially appreciate how the workbook promotes empowerment and self-efficacy throughout."
Iman Williams Christians, Ph.D.Child Clinical PsychologistAnger Management Workbook

A valuable resource for any girl navigating her first period

"As an expressive arts therapist, I appreciate how this book informs and nurtures emotional well-being... making it a valuable resource for any girl navigating her first period."
Ms LamExpressive Arts TherapistThe Only First Period Guide

Wonderfully playful and engaging

"Wonderfully playful and engaging. This workbook will help children and families to increase their understanding and awareness of anger and emotional expression."
Caitlin SigouinRegistered Social Worker & Therapist, MSWAnger Management Workbook

Empowering girls to embrace their bodies with confidence

"I would recommend this guide to my students who may be uninformed but too shy to ask about their first period."
C.T ChanMA (Education), Primary School TeacherThe Only First Period Guide

A Joyful Christmas Piano Experience for Kids!

"Our teachers and students love using it during the holiday season. A wonderful way to make learning piano fun and seasonal!"
Phoebe ChongCo-founder of Woody Music and LearningEasy Christmas Piano Songs

This book hit a home run!

"It engages young readers, has nice illustrations, and teaches good morals and life lessons."
AJ KikumotoAuthorInspirational Baseball Stories

Practical and Fun Money Lessons for Kids!

"This book is enjoyable and easy to follow, with ideas that truly connect to everyday life. I love the challenges and tips at the end of each chapter—they make learning about money fun and practical."
Qin YeAccountantThe Only Money Skills Guide

What parents say

My daughter carries this with her everywhere

"I purchased this book for my 10 year old to prepare her for her first period... She has read this book cover to cover on multiple occasions and takes comfort from it."
Bak9Verified Amazon purchaseThe Only First Period Guide

A good guide for teen boys

"This book helped him to understand his mood changes, his body changes and deal with his social life."
Tania MartinezVerified Amazon purchaseThe Only Boys' Guide to Puberty

Very informative

"Was a great book for my 11 year old daughter to just have a better understanding of periods. Her doctor recommended this book."
JaimesCrafty WorldVerified Amazon purchaseThe Only First Period Guide

A great book for my 12 year old son!

"This book will help open the door for conversation... Highly recommended!!"
M. SlavensVerified Amazon purchaseThe Only Boys' Guide to Puberty

Cute

"My daughter loves working in this book!"
LorenaVerified Amazon purchaseAnger Management Workbook

Great to teach money basics

"Great to teach money basics to grandkids. Schools don't have time to teach this."
jibVerified Amazon purchaseThe Only Money Skills Guide

Going to read this book again and again!

"...strategies I can use right away with my 7-year-old and 13-year-old to create a more peaceful, loving home."
Power of PositivityVerified Amazon purchase4 Weeks to Gentle Parenting

Great Book for Young Baseball Fans

"I bought this book for my 10 year old son, and he loved it."
BookloverKTVerified Amazon purchaseInspirational Baseball Stories

A Fantastic Piano Book with Free Video Tutorials!

"The lettered noteheads make it incredibly easy for beginners to follow along..."
RoninVerified Amazon purchaseThree Blind Mice | Easy Piano Songs for Kids

Reviews from Amazon and book reviewers, shared word for word.

Meet Adelina & her co-authors

Written with my kids, for your kids

Adelina Fong, author

Hi, I'm Adelina - a mum of two and the founder of Cool Cub Publishing. With a degree in English and a Master's in International Marketing, I write the books I wished I'd had as a parent: beautifully illustrated, in words kids enjoy, on the life skills school often skips.

My two co-authors, Clever Month (8) and Little Cute Penguin (5), test every idea - and wrote Ready, Steady, Brave! themselves.

Illustration of co-author Clever Month
Clever Monthage 8
Illustration of co-author Little Cute Penguin
Little Cute Penguinage 5

From our kids' notebooks

FAQ

Questions parents ask

Which book is right for my child?

Tap a topic at the top of this page (like First period, Staying safe or Piano) and it takes you straight to the right book. Each book also shows its age range.

What ages are the books for?

From 4 to 14, depending on the book. The piano books start at age 4, and the puberty and money guides go up to age 14.

Are the puberty books age-appropriate?

Yes. They use clear, kid-friendly words and illustrations, and they're recommended by therapists and teachers. With younger children, we suggest reading them together.

Can my child read the books alone?

Yes. They're written for kids to enjoy on their own, and they also work well read together to start a conversation.

Do the piano books really come with videos?

Yes. Every song has a free play-along video, so kids can hear the tune and follow along. You can also find them on our YouTube channel.

Where can I buy the books?

All our books are sold on Amazon. Tap "Get it on Amazon" on any book above.

Who writes the books?

Adelina Fong, a mum of two and the founder of Cool Cub Publishing. Ready, Steady, Brave! was written with her two kids.

Find the right book

Raise a confident kid

13 books. 36,000+ copies sold. One mission.

Find the right book
Amir, a detective characterLeo, a detective characterElsa, a detective characterNoor, a detective character