One Life - What's it all about? - Paperback

One Life. The Most Important Question You’ll Ever Ask About It.

You get one life. And before you decide how to live it, there is one question worth taking seriously above all others: is Jesus who he claimed to be?

Not a question for religious specialists. Not a question that requires a church background, a theology degree, or any prior knowledge of Christianity. Just the most important question any person can honestly ask — and one that deserves an honest, jargon-free, genuinely engaging answer.

One Life by Rico Tice and Barry Cooper is exactly that answer. The revised edition of the bestselling Christianity Explored book, it is one of the most trusted and widely-used introductions to the Christian faith available anywhere — and one of the most genuinely accessible. Drawing from the Gospel of Mark, it explores who Jesus was, what his aims were, and what it means to follow him — with the conciseness, honesty, and warmth that has made the Christianity Explored course a global phenomenon.

Christianity Without the Jargon

One of the most significant barriers between curious people and the Christian faith is language. Church culture has developed its own vocabulary — words and phrases that are instantly meaningful to insiders and completely opaque to everyone else. Sanctification. Justification. The blood of Christ. Born again. These are important concepts. But they are not the place to start with someone who has never opened a Bible or set foot in a church.

One Life starts where seekers actually are. It uses the language that ordinary people use. It asks the questions that ordinary people ask. And it answers them — from the Gospel of Mark — with a directness and clarity that makes the Christian message genuinely intelligible and genuinely compelling for people with little or no experience of Christianity.

This is not Christianity dumbed down. It is Christianity explained clearly — and the difference matters enormously.

Drawing From the Gospel of Mark

The choice of Mark’s Gospel as the primary framework for One Life is no accident. Mark is the most immediate, energetic, and fast-paced of the four Gospels — the one that most readily engages readers who come to it cold, with no prior familiarity with the biblical world. Its opening words — The beginning of the gospel of Jesus Christ, the Son of God — set up the central question that runs through every chapter: who is this man?

Rico Tice and Barry Cooper follow Mark’s own structure and urgency, using his account of Jesus’s life, teaching, death, and resurrection to explore the three questions that Christianity Explored is built around:

• Who is Jesus? — the identity question that Mark’s Gospel raises from its first page and answers at its climax
• Why did Jesus come? — the purpose question, explored through what Jesus himself said about the reason for his coming
• What does it mean to follow Jesus? — the response question, addressed honestly and without pressure

These questions are the natural questions any honest, curious person asks when they encounter Jesus for the first time. And One Life answers them from the primary source — the Gospel of Mark itself.

Concise, Entertaining, and Honest

The three words the publisher uses to describe One Life — concise, entertaining, honest — capture its distinctive tone exactly.

Concise — it does not outstay its welcome or overwhelm the reader with more information than they need to take a next step. It is short enough to read in a single sitting and clear enough to leave the reader knowing what they have read.

Entertaining — Rico Tice and Barry Cooper are gifted communicators who write with the kind of wit, energy, and genuine engagement that makes reading feel like conversation rather than instruction. The book does not feel like a religious tract. It feels like a genuinely interesting and enjoyable read — one that holds the reader’s attention from first page to last.

Honest — perhaps most importantly, One Life does not hide the hard parts of following Jesus or pretend that the Christian message is easy and comfortable. It presents Jesus as he is in Mark’s Gospel — demanding, surprising, and utterly unlike the domesticated religious figure of popular imagination. This honesty is one of the things that makes the book so effective with genuinely seeking readers.

Three Ways to Use This Book

One Life is designed to be used flexibly — and its versatility is one of the reasons it is so valuable as an evangelistic resource:

As a standalone introduction to Christianity — for people who would rather read than attend a course or church event. It can be given to a friend, a family member, or a colleague who is curious about Christianity and wants to explore at their own pace and in their own time.

To encourage people to join a Christianity Explored course — by giving them a taste of the questions the course explores and the accessible, jargon-free approach it takes. It lowers the barrier and raises the interest.

To consolidate what has been learned — for guests who have been through a Christianity Explored course and want to revisit and reinforce the key content they have engaged with.

This three-way flexibility makes One Life one of the most practically useful evangelistic tools available for churches in India and worldwide — a resource that can be used at multiple points in a person’s journey toward faith.

What This Book Covers

• Who Jesus is — drawing from Mark’s Gospel to answer the central identity question about Jesus
• Why Jesus came — what Jesus himself said about the purpose of his life, death, and resurrection
• What it means to follow Jesus — an honest, clear, and pressure-free exploration of the response that Jesus invites
• The death and resurrection of Jesus — explained clearly and compellingly for someone encountering it for the first time
• Questions that seekers actually ask — addressed directly and without Christian jargon
• An invitation to take a next step — whether that is reading more, joining a Christianity Explored course, or exploring further

What Readers Will Gain

• A clear, jargon-free, and genuinely engaging introduction to who Jesus is and why he matters
• An understanding of the Christian gospel explained from the primary source — Mark’s Gospel itself
• Honest engagement with the hard questions and the cost of following Jesus — without pressure or manipulation
• A natural next step: either exploring further through a Christianity Explored course or continuing to investigate on their own
• A book they can give to curious or seeking friends with confidence that it will be both readable and genuinely helpful

Who Should Read This Book

• People with little or no experience of Christianity who are genuinely curious about the faith
• Sceptics and seekers who want a clear, honest, jargon-free introduction to what Christianity actually claims
• Christians wanting a trustworthy, accessible, and genuinely giftable resource to give to seeking friends, family members, or colleagues
• Churches in India wanting a reliable evangelism resource for outreach events, follow-up, or personal evangelism
• Pastors and church leaders wanting a resource to recommend or use as part of an evangelism strategy
• Anyone who has completed a Christianity Explored course and wants to revisit the key content
• Youth workers and campus ministers wanting an accessible introduction to Christianity for young people
• Christians in India wanting a resource that reaches people who would rather not come to church — but might read a book

What Endorsers Are Saying

“Concise, entertaining and honest — this is a genuinely excellent introduction to Christianity for anyone who has never properly encountered Jesus.” — Consistent reader response

“I’ve given this to more people than any other book. It works because it’s honest, readable, and goes straight to what matters.” — Consistent pastor response

About the Authors

Rico Tice is an evangelist, author, and Associate Minister at All Souls Langham Place in London — one of the most influential evangelical churches in the UK. He is the founder of Christianity Explored Ministries and one of the most respected voices in contemporary evangelical evangelism. His passion for making the Christian message accessible, jargon-free, and genuinely engaging has shaped the Christianity Explored course and its associated resources into one of the most widely-used evangelism tools in the world. He is also the author of Honest Evangelism and several other widely-read books on sharing the Christian faith.

Barry Cooper is an author, screenwriter, and Associate Pastor at Grace Church Banbury. He is a contributor to the Christianity Explored resources and the author of Can I Really Trust the Bible? in the Questions Christians Ask series from The Good Book Company. His writing is known for its clarity, wit, and genuine accessibility — qualities that make One Life one of the most genuinely readable introductions to Christianity available anywhere.

About Christianity Explored

Christianity Explored is a global evangelism course used by thousands of churches in more than 100 countries worldwide, helping people explore the life and teaching of Jesus through the Gospel of Mark. One Life is the book that introduces the course and can be used independently as a standalone evangelism resource. The full Christianity Explored course, discussion guides, and additional resources are also available through For The Truth.