I think I first read True Community by Jerry Bridges under the title True Fellowship.
The Kindle edition is currently available for free at Amazon.
It is a wonderfully practical and straightforward unfolding of that which is called koinonia in the original language of the New Testament.
Small groups could do worse than read through chapters and discuss them as they meet.
Thanks Gospel eBooks.
Fellowship among believers is more than just talking over coffee after church service. Biblical fellowship in New Testament times — or koinonia — had rich and varied meanings, including covenant relationship, partnership in the gospel, communion with God and others, and the sharing of earthly possessions.
In True Community, best-selling author Jerry Bridges guides you through koinonia and its implications for today’s church. With discussion questions at the end of each chapter, this book will help you dig deeper into what Christian community in the twenty-first century should look like. You will come away with a new appreciation for fellowship, the church, and what God intended the body of Christ to be.
If it’s no longer free you’ve missed out.