Welcome, friend. We’re so glad you found your way here.
Thin Within is now Revelation Within. The heart hasn’t changed: peace with food, freedom in Christ, and transformation from the inside out. Our teaching has grown over the years, and we’ve gathered the original Thin Within materials here, in their own quiet place, for those who treasure them.
Take a look around. And when you’re ready, we’d love to show you where we are now.
What is Thin Within?
Thin Within is the Christ-centered approach to food and eating first taught by Arthur and Judy Halliday. Heidi Bylsma-Epperson taught alongside them beginning in 2000, and in June 2023 Thin Within became Revelation Within. The Classic Thin Within Vault keeps the original Thin Within workbooks, the Thin Within Book Study, the 30-day JumpStart, the Hunger Within Study and more, just as they were first created.
Start here, if you’d like a fresh step
Design a Revelation Within Life
The classic handbook, lovingly refreshed for today. A familiar place to begin again.
The Revelation Within Community
Come inside and meet others who are learning to live loved, one day at a time.
Come insideJumpStart to Peaceful Eating
A gentle, grace-filled way to begin peaceful eating with God at the center.
Start JumpStartOriginal Thin Within materials
Classic editions, offered as they were first created. Some language reflects where we were then, and the truth in them still stands.
Think Thin Within
The course where it all began. Over four modules, Heidi and Christina walk with you through why thinking differently matters, what to think differently about, and simple tools for breaking free from habitual overeating.
Peek inside
- Module 1: Why Think Differently? Two tools to get started
- Module 2: What to Think Differently About
- Module 3: Six more tools for thinking Thin Within
- Module 4: Consider This, plus Defeating Habitual Overeating (two parts)
- Bonus videos and renewing-the-mind audios from Heidi and Christina
- Bible Goodies: verse collections on identity in Christ, breaking free from dieting, hope, and feeling like a failure
- Mind renewal resources Heidi recommends
Thin Within Book Digital Companion
A 10-lesson companion to the Thin Within book, with videos, audios, workbook pages, and notes for leaders. Grab your own copy of the book and walk through it with us.
Peek inside
- A welcome and a guide for your first group meeting
- 10 lessons: Purposeful Plans, Divine Design, Meant for Majesty, Bolstering Belief, Galvanized Grace, Treasures in the Temple, Renewal Found in Release, Strengthened by Surrender, Walking in God’s Wealth, and Joy in the Journey
- A short preview before each lesson
- Videos, audios, workbook pages, and notes for leaders
Satisfaction for the Hungry Heart
In 2021, Heidi gathered more than 24 authors, speakers, and teachers to speak to one question: what truly satisfies a hungry heart? This is the full masterclass series.
Peek inside
- Two weeks of the masterclass series, three parts each week
- More than 24 authors, speakers, and teachers, each speaking to what truly satisfies a hungry heart
- A welcome to get you started
From Failure to Freedom
For those who have tasted the freedom of Thin Within but can’t seem to get traction. We created this program while we were still Thin Within, and it still meets women right where they are.
Peek inside
- A welcome, then seven modules: Capture a Vision of Freedom, Our Amazing God, Christ-like Responses to Failure, Perfectionism, Walking in Truth, Resting in Christ, and a closing week
- An overview video each week from Heidi and Christina
- 3 or 4 assignments each week, with printable PDFs
- Discussion and journaling questions for every module
Classic Thin Within Workbooks 1–4
The workbook series that began in 2001: God’s Master Plan, Building a Solid Foundation, Building on God’s Truth, and Celebrating God’s Grace. Each holds 12 weekly lessons, a rich mix of Bible study and practical teaching.
Peek inside
- Workbook 1: God’s Master Plan
- Workbook 2: Building a Solid Foundation
- Workbook 3: Building on God’s Truth
- Workbook 4: Celebrating God’s Grace
- 48 weekly lessons in all, as printable PDFs
The Thin Within Vault
A treasury of Thin Within teaching from over the years: the 30-day JumpStart Training, classic printables and tools, training replays, the Thin Within Book Study, the Workbook #1 study, the Hunger Within Study, and the four-part Overcome Cravings e-course.
Peek inside
- Thin Within JumpStart Training (36 lessons)
- Thin Within Printables and classic tools (27)
- Replays of Thin Within trainings (26)
- Thin Within Book Study (37)
- Study of Thin Within Workbook #1 (27)
- Hunger Within Study (18)
- Overcome Cravings e-course (5)
- 176 lessons in all
Bought one of these years ago?
You don’t need to buy it again. Send us a note and we’ll help you find your way back to what’s yours.
Contact usQuestions about Thin Within
Is Thin Within still available?
Yes. The original materials live here in the Classic Thin Within Vault, and the teaching continues today as Revelation Within.
Where can I find the Thin Within workbooks?
All four Classic Thin Within Workbooks are available here as PDFs, and Workbooks 1 and 2 are also in print on Amazon.
What happened to Thin Within?
In June 2023, Thin Within became Revelation Within. Same heart and the same coaches, with a name that reflects the transformation God brings from the inside out.
From Counterfeit Comforts to Christ-Centered Confidence
Visit Revelation Within