Catechumens
The best way to learn about Orthodoxy is to "practice" it. There is a yearly cycle that goes from the birth of the Mother of God through her Repose. Each major event in the life of Jesus is celebrated as a feast day Every day there are prescribed Gospel and Epistle readings. As well, each day we commemorate the life of a Venerable (a Saint or Martyr). Plus, on "minor" feast days we may also venerate a special icon or the cross as these apply to the life of the church.
Certain books and other study materials ("The Lives of the Saints" and special writings of the Church Fathers for example) are traditionally read at prescribed times (before meals, perhaps). And even our "Liturgy" (specific prayers) are read and recited until we can say them without error. All of these are integrated into the services of the church. Parishioners actively participate in them by standing, sitting, crossing ourselves, and repeating certain phrases in response to what the priest chants.
Learning about Orthodoxy is fun and practically effortless. The clergy are experts on church dogma. Church members sing and chant along with the priest. The learning environment is serene and made more beautiful with art, incense, candles, and music. Everyone is friendly and helpful. We are all as forgiving as children: And the children seem to know as much as the adults about the church (they learn to cross themselves, venerate icons, and sing — often before they can even walk).
All Orthodox are students. New members in the church are designated as "catechumens" (special students). All catechumens go through a "catechumenate" where they learn church doctrine. And certain churches surely have classes on Orthodoxy where they teach all of this in-depth. Still, the best way to learn is to go to an Orthodox church (as I've said). After one year of going to church, I feel like I'm proficient in their beliefs (though I'm still learning too, to be sure).
(from an email reply to a query on learning the Orthodox faith submitted from this site by a visitor)
Freely Ye Have Received Freely Give