The World Council of Churches by Frits Albers offers a forceful theological critique of the ecumenical movement through a distinctly Catholic lens. Drawing on Scripture, Church teaching, and historical analysis, Albers examines the origins, doctrines, and global ambitions of the World Council of Churches, arguing that its vision of unity departs from apostolic faith and sacramental tradition. This work challenges readers to reflect deeply on ecclesial identity, doctrinal fidelity, and the meaning of authentic Christian unity.