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Daniel Hayes Baby • Two Digital Parenting Guides

Your Baby Is Communicating — Long Before Their First Words.

Discover the little signals behind your baby's emotions, behavior, sleep, learning and early development — with two thoughtful guides created for parents who want to understand their little ones more deeply.

  • Digital PDFs delivered through Gumroad
  • Read on phone, tablet or computer
  • One-time purchase
Daniel Hayes smiling in a nursery with a blue side and a pink side, each with a white crib
Boy & Girl guidesBoth PDFs · one checkout · $49.99

Choose your guide

One Guide for Him, One for Her — or Both Together

Each guide is its own complete digital PDF. Pick the one for your little one, or get both in a single checkout and save $9.99.

Cover of Understanding Your Baby Boy: The Complete Guide to His Emotions, Behavior, Brain Development and Hidden Signals
For your son

Understanding Your Baby Boy

The Complete Guide to His Emotions, Behavior, Brain Development & Hidden Signals

A warm, practical companion for reading his cues, his moods and the small moments when he's reaching out to you.

  • One digital PDF
  • Emotions, behavior, sleep and brain development
  • Its own Gumroad checkout
$29.99USD · one-time
Get the baby boy guide — $29.99
Best value • Both books
Understanding Your Baby, Complete Boy and Girl Bundle: the boy guide and the girl guide shown side by side
Complete bundle

Understanding Your Baby — Complete Boy & Girl Bundle

Both full guides in one order — ideal for twins, growing families, grandparents and anyone caring for a little boy and a little girl.

  • Understanding Your Baby Boy (PDF)
  • Understanding Your Baby Girl (PDF)
  • One Gumroad checkout for both

Bought separately: $59.98

$49.99USD · one-time
You save $9.99 Get both books — $49.99

Two separate PDFs • One checkout

Cover of Understanding Your Baby Girl: The Complete Guide to Her Emotions, Behavior, Brain Development and Hidden Signals
For your daughter

Understanding Your Baby Girl

The Complete Guide to Her Emotions, Behavior, Brain Development & Hidden Signals

A gentle, practical companion for reading her cues, her moods and the small moments when she's reaching out to you.

  • One digital PDF
  • Emotions, behavior, sleep and brain development
  • Its own Gumroad checkout
$29.99USD · one-time
Get the baby girl guide — $29.99

Secure checkout on Gumroad PDF delivery by Gumroad No subscription

Why these guides matter

So Much Is Happening Before Your Baby Can Speak

Long before words, babies tell us how they feel through their faces, their bodies, their voices and their rhythms.

A cry can mean many different things depending on the moment. A long, steady gaze, a turned-away head, a tiny fist wrapped around your finger — each one is part of an early conversation. None of these cues comes with a fixed translation, but the more closely you watch, the more you begin to recognize your own baby's patterns.

These guides help you slow down and notice those patterns: what might be behind a behavior, what's typical at different stages, and how to respond with more confidence and less second-guessing.

  • Crying in contextHunger, tiredness, discomfort or a need for closeness — the setting often tells you more than the sound.
  • Gaze and attentionWhen your baby locks eyes with you — and when they look away to take a break.
  • Grasping and reachingLittle hands that explore, hold on and begin to ask for what they want.
  • Sleep cuesYawns, eye rubs, fussiness and that faraway look that says rest is close.
  • Familiar voicesHow babies respond to the people who talk, sing and soothe them every day.

Crying & Cues

Look at crying alongside timing, body language and routine, so you can respond to the whole picture.

Emotions & Connection

How early feelings show up, and how warm, responsive care builds trust between you.

Sleep & Routines

Read tired signs sooner and shape calm, predictable rhythms that work for your family.

Early Brain Development

A plain-English look at how everyday interaction, play and rest support a growing brain.

Play & Learning

Simple, age-appropriate ways to play that invite curiosity, movement and connection.

Milestones & Individual Differences

What's typical, why timelines vary, and why your baby's own pace matters most.

Everyday Parenting Questions

Thoughtful perspective on the small, real questions that come up day after day.

Common Myths Explained

Separate popular assumptions from what research generally suggests, without the guilt.

What you get

Two Complete Digital Guides

Each guide focuses on one little one — your son or your daughter — and explores the everyday signals that help you understand them better.

Cover of Understanding Your Baby Boy

Guide for your son

Understanding Your Baby Boy

The Complete Guide to His Emotions, Behavior, Brain Development & Hidden Signals

  • Digital PDF
  • $29.99 USD
  • Delivered by Gumroad

A comprehensive, parent-friendly guide to the early months and years with your baby boy. It walks through what his expressions, sounds and movements may be telling you, how his brain is developing through everyday interaction, and how you can respond in ways that help him feel safe, seen and connected.

Topics explored

  • His emotions and how they show up early on
  • Behavior and what may be behind it
  • Brain development in everyday moments
  • Attachment and your growing bond
  • Sleep and day-to-day rhythms
  • Early communication, before words
  • Facial expressions and body language
  • Developmental milestones and his own pace
  • Parent–child interaction and play
Cover of Understanding Your Baby Girl

Guide for your daughter

Understanding Your Baby Girl

The Complete Guide to Her Emotions, Behavior, Brain Development & Hidden Signals

  • Digital PDF
  • $29.99 USD
  • Delivered by Gumroad

A comprehensive, parent-friendly guide to the early months and years with your baby girl. It walks through what her expressions, sounds and movements may be telling you, how her brain is developing through everyday interaction, and how you can respond in ways that help her feel safe, seen and connected.

Topics explored

  • Her emotions and how they show up early on
  • Behavior and what may be behind it
  • Brain development in everyday moments
  • Attachment and your growing bond
  • Sleep and day-to-day rhythms
  • Early communication, before words
  • Facial expressions and body language
  • Developmental milestones and her own pace
  • Parent–child interaction and play

Compare

Which Option Should I Choose?

Every option is a one-time digital purchase through Gumroad. The bundle simply gives you both guides for less.

Comparison of the baby boy guide, the complete bundle and the baby girl guide
OptionWhat's includedBest forPriceSavingsBuy
Baby Boy GuideOne PDF Understanding Your Baby Boy (PDF) Parents and caregivers of a baby boy $29.99 — Get the boy guide
Both Guides BundleBest value · Two PDFs Both Understanding Your Baby Boy and Understanding Your Baby Girl — two separate PDFs in one checkout Twins, siblings, growing families, grandparents and gift-givers $49.99
vs. $59.98 separately
Save $9.99 Get both books
Baby Girl GuideOne PDF Understanding Your Baby Girl (PDF) Parents and caregivers of a baby girl $29.99 — Get the girl guide
Portrait of Daniel Hayes

A note from Daniel

Meet Daniel Hayes

“Welcome to Daniel Hayes Baby, a place dedicated to helping parents better understand their little ones. Discover the fascinating world of baby emotions, behavior, brain development, and early communication through practical, research-informed parenting guides designed to bring families closer together.”

— Daniel Hayes

  • Warm, not clinicalWritten for real parents in plain, everyday language.
  • Research-informedPractical ideas grounded in what's known about early development.
  • No judgmentEvery baby — and every family — finds its own rhythm.
Get both books — $49.99

Inside the guides

A Gentle Learning Journey

Here's a look at the big themes both guides explore, grouped to show how the ideas connect.

Understanding Signals

Early communication happens through the whole body.

  • Facial expressions and what they may suggest
  • Body language: arching, reaching, turning away
  • Crying read alongside timing and context

The Developing Brain

Everyday moments do quiet, important work.

  • How back-and-forth interaction supports growth
  • Senses: sight, sound, touch and movement
  • Why repetition and rest both matter

Sleep & Everyday Routines

Rhythm can bring calm for everyone in the house.

  • Recognizing tired cues earlier
  • Building predictable, soothing routines
  • Adjusting as your baby grows and changes

Attachment & Caregiver Connection

A secure bond grows from countless small responses.

  • What responsive care looks like day to day
  • Familiar voices, faces and touch
  • Repairing the bond after hard moments

Play & Early Learning

Play is how babies explore their world — and you.

  • Simple, age-appropriate play ideas
  • Following your baby's lead
  • Turning routines into gentle learning moments

Milestones & Individuality

Milestones are guideposts, not a race.

  • What's typical at different stages
  • Why healthy timelines vary so widely
  • Celebrating your baby's own temperament

When to Ask a Pediatric Professional

These guides are for learning and connection — they don't replace your baby's doctor. If something feels off, trust your instincts and reach out. Contact your pediatrician or a medical professional promptly about concerns such as fever in a very young baby, trouble breathing, feeding much less than usual, unusual sleepiness, or crying that seems different and can't be soothed. In an emergency, call 911 or your local emergency number.

Theme groupings are illustrative and don't represent the books' exact chapter titles.

Our approach

Built Around Understanding, Not Pressure

Observe

Learn what to look for — faces, sounds, movement and timing — so everyday moments start to make more sense.

Understand

Explore what a behavior might mean in context, with clear explanations and room for your baby's individuality.

Respond

Answer with warmth and confidence, and build a connection that grows stronger day by day.

FAQ

Questions, Answered

What exactly comes with the complete bundle?

The Understanding Your Baby — Complete Boy & Girl Bundle includes both guides as two separate digital PDFs: Understanding Your Baby Boy and Understanding Your Baby Girl. You get both in one Gumroad order for $49.99, compared with $59.98 when bought separately — a savings of $9.99.

Can I buy only the boy guide or only the girl guide?

Yes. Each guide is available on its own for $29.99 through its own Gumroad checkout: the baby boy guide or the baby girl guide.

How do I receive my books after payment?

Checkout, payment and delivery are handled by Gumroad. Once your payment goes through, Gumroad gives you access to your PDF file or files. Nothing is shipped by mail.

Are these printed books or digital PDFs?

They're digital PDFs. No physical copies are included.

Can I read the PDFs on my phone, tablet and computer?

Yes. PDFs open on most phones, tablets and computers with a standard PDF reader or a web browser.

Is this a subscription or a one-time purchase?

It's a one-time purchase. There's no subscription and no recurring charge.

Are the guides medical advice?

No. The guides offer general educational information to help you understand your baby. They don't diagnose, treat or replace care from a pediatrician or other qualified professional. If you have a concern about your baby's health or development, please talk with your baby's doctor.

Do boys and girls necessarily develop differently?

Not necessarily. Every baby develops at their own pace, and the differences between individual babies are usually far greater than any general differences between boys and girls. Each guide speaks to your little one directly — "him" or "her" — but neither assumes your baby will fit a stereotype. Temperament, environment and everyday experiences all shape who your child becomes.

What if I have a question about my purchase?

Your order is processed by Gumroad, so your purchase receipt and the Gumroad product page are the best places to start for questions about payment, access or downloads.

Is there a refund policy?

This website doesn't offer a separate guarantee. Any refund terms that apply are the ones shown on Gumroad for each product, so please review the product page and checkout before you buy.

The Understanding Your Baby boy and girl guides shown together

The complete boy & girl bundle

Understand Their Little Worlds. Build a Stronger Connection.

Every glance, coo and cry is part of how your baby reaches for you. Get both guides and spend a little more time understanding — and a little less time guessing.

$49.99for both PDFs · $59.98 if bought separatelySave $9.99
Get both books — $49.99
The boy and girl guides shown together

Complete bundle

Both Books — $49.99

Get Understanding Your Baby Boy and Understanding Your Baby Girl as two PDFs in one checkout.

Save $9.99 vs. $59.98 Get both books