Form IV Catechesis

Living God: A Catechism for the Christian Faith by M. Olivier Clement

"The two volumes integrate the major feasts of the liturgical year with an overview of the history of salvation. Volume I contains the period from the Creation through the Resurrection of Christ. Volume II begins with the feast of Ascension continues through the book of Revelation and concludes with the Sacraments of Prayer in the life of the Church. Both volumes are illustrated with musical examples as well as color and monochrome reproductions of icons." (from the publisher's description)

Entering the Orthodox Church by Metropolitan Hierotheos (Vlachos) (also available on Archive.org)

This popular book is based around even ‘Catechisms’ drawn upon the parable of the prodigal son and nine Catechisms based on the Creed, looking first at the Creed as a whole and then at the individual articles. Each Catechism is followed by questions and answers on all the points covered. 

Liturgics by Archbishop Averky (link is to the online text)

A Guide to the Orthodox Life by Protopresbyter David Cownie and Presbytera Juliana Cownie

"A popular, lucid, and utterly practical introduction to the Orthodox way of life, this guide covers the whole spectrum of daily living according to the Holy Tradition of Orthodoxy. This is essential reading for all Orthodox, but especially for prospective or recent converts. It supplies detailed information, unavailable for the most part anywhere else in English, on Orthodox piety, fasting, maintaining a regular cycle of prayer in the home, family life, management of money, Church etiquette, preparation for the Mysteries, and proper behavior towards clergy and when visiting monasteries." (from the publisher's description)

Orthodoxy and Heterodoxy by Fr. Andrew Stephen Damick

"Are you an Orthodox Christian who wonders how to explain to your Baptist grandmother, your Buddhist neighbor, or the Jehovah’s Witness at your door how your faith differs from theirs? Or are you a member of another faith who is curious what Orthodoxy is all about? Look no further. In Orthodoxy & Heterodoxy, Fr. Andrew Stephen Damick covers the gamut of ancient heresies, modern Christian denominations, fringe groups, and major world religions, highlighting the main points of each faith. This book is an invaluable reference for anyone who wants to understand the faiths of those they come in contact with—as well as their own." (from the publisher's description)