Book excerpt: According to the author, "In order to understand the present, and move confidently into the future, one must have an appreciation of the past." The book therefore deals, in a non-technical way, with the theology and history of ecumenism, explains the origins of the main Christian denominations, gives a brief history of the World Council of Churches, and introduces some of the current issues. Ecumenical ethics and inter-religious dialogues form the subjects of the two final chapters. The author concludes each chapter with questions for group discussion, and ends the book with suggestions for practical ways in which the ordinary individual can promote ecumenism. Several appendices give useful background information. This book is for the average reader or student of theology who would like to be better informed about ecumenism.