I’m a Boy: My Changing Body by Shelley Metten

cover of I'm a Boy My Changing Body by Shelley Metten

See a copy of I'm a Boy: My Changing Body by Shelley Metten at Amazon.

Book Review:  A book for males bodies about the changes that hapepn with puberty.

Book Review

I'm a Boy: My Changing Body by Shelley Metten from Anatomy for Kids, is a book for boys that provides them with factual information about puberty and their reproductive parts.

This is a series of 3 books, of which this is the second book. This book focuses on the early signs of puberty and the reproductive organs and genitals. The information is age-appropriate, the illustrations are amazing, and overall the presentation is very sensitive and not at all confronting.

The first book, I'm a Boy: Special Me is for 5-7 year olds, whilst the third book, I'm a Boy: Hormones is for 11-13 year olds.

Sexual intercourse is NOT talked about in this book.


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✅ Buy a copy of I'm a Boy: My Changing Body by Shelley Metten from Amazon.

Ideal ages

I'm a Boy: My Changing Body by Shelley Metten is ideal for children between the ages of 8 – 10 years of age.

✅ Buy a copy

You can buy a copy of I'm a Boy: My Changing Body by Shelley Metten from Amazon and is also available as an eBook.

You can find more books like this in my extensive list of Sex Education Books for Children.

Video book review

Read the video transcription

Hi, I'm Cath Hak from Sex Ed Rescue and today we’re talking about a book for boys who are going through puberty. It's called I'm a boy: My changing body by Shelley Metten. She has a Facebook page and a website called Anatomy for Kids. On top of that, she also runs  workshops for parents and kids to learn about the change’s puberty bring.

Metten has two book series, one for girls and one for boys. This book is the first from the boys’ series. The ones after this continue from the previous book, giving you more information on puberty the more you read. The first one talks about the biology of where babies come from. It talks about sperm, the penis, testicles, and scrotum. This book talks about how all those parts work, what they are, and how they develop.

As the book says at the start, ‘This [book] is the first of two that describes the changes a young boy experiences during puberty. It's intended for boys who have begun to notice early signs of puberty including changes in the signs of genitals and the growth of hair in some places.’ You can see this quote is true on how the book is written. Every so often, there are pictures, but most of the book contains words. So, it’s for an older group of children who’ve begun reading.

Starting off, the book talks about puberty. The story begins with the characters going to a sports store to buy an athletic cup. The younger character asks what an athletic cup does, so they talk about how boys need to protect their privates. After talking, the characters go to see Dr. Metten who explains what puberty is. Metten explains it, talking about how puberty is that transition from being a child to an adult.

She talks about what a penis is and shows a simple diagram of one. There is a nice mix of simple and descriptive images, even ones of circumcised and uncircumcised penises. For parents, there is also a variety of diagrams with more detail and names. A lot of the information, like their testes growing, helps normalizes puberty and stop fear boys might have had.

The book talks about sperm, what it looks like, what it is, and why your testes hang lower because of it. There is lots of information about changes that boys will go through during puberty. With sperm, she talks about how they’re not making it yet, but their hormones are getting them ready. The anatomy of how sperm comes out is also covered; how it comes out the urethral from the testes. Briefly, she talks about semen and how you can’t ejaculate and pee at the same time. That, however, is talked about in her next book.

With all this information, this book is perfect for curious children. Some kids want to know about the inner workings of everything- bodies included. Metten writes it in a beautiful, child appropriate way. Even if your child doesn’t want to know everything, this is still very good information for them to have.

At the end, she begins wrapping things up. How hair grows in odd places, and briefly about changes that happen later. That information is discussed in her next book along with masturbation and ejaculation. That is why this is a very well-made book for this age group. It gives lots of easy information, is age appropriate, and answers all your questions.

I hope that helps, Cheers.


My mission is to create resources that will help you to naturally talk to your kids about sex, all while respecting your personal values.

Which means that inside this website, you'll find lots of resources to help you with talking to your child about love, sex, relationships and growing up.

My Sex Education 101 page includes all of the information on sex education. You'll find lots of different blogposts to help with getting started, on a wide range of different topics.

My Puberty 101 page includes all of the information on puberty. You'll find lots of different blogposts to help with talking to your child about growing up.

You'll find videos about sex ed in my Sex Education Videos resource page that you can watch with your child or to learn more about sex education yourself.

You’ll also find an extensive range of sex education books for children, for kids of all ages. There's even some books in there for parents! 

If you're looking for some ideas on how to talk to your child about bodies, How to Talk to Kids About Bodies, will help you to start naming the private body parts and to have shame-free conversations with them about bodies. It is filled with lots of different ideas on how to have natural converasations with your child about their body. 

You'll also find some child friendly anatomically-correct cartoon illustrations of the genitals and internal reproductive organs that are appropriate for children from the age of 3 and up. Let's Look at Different Body Parts is a printable that will help take the awkward out of talking to your child about their body, so they grow up feeling educated, confident, and comfortable in their own skin.

If you're worried that talking to your child about bodies might lead to questions about sex, then you can relax. How to Talk to Kids About Sex, will help you to explain sexual intercourse to your child in a way they will understand. It breaks sex down into simple steps that  take the stress out of explaining!

If you want a printed book to hold in your hands, then the  The Sex Education Answer Book will give you age-specific answers to the most common questions kid's ask parents about sex. Which means you don't need to worry about finding a child-friendly explanation that your child understands. 

If you want the answers to questions about a lot more than just sex, then Sex Ed Quickies is your best option. It has answers to 300+ questions  that kids commonly ask parents,  including how babies are made, sexual intercourse, body parts, puberty, relationships, pregnancy, birth, masturbation, sexual diversity, gender, pornography, STIs, contraception and much more.

About the Author Cath Hakanson

I'm Cath, a sex educator living in Australia with my husband and 2 kids. I help parents to talk about sex (with less cringe and more confidence) and empower their child to make smart sexual decisions. To find a better way to talk about sex, you can join my community of parents and visit my shop for helpful resources.

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