I'm not a priest.
Timothy Ware's "The Orthodox Church," is the classic. A more recent, short book, but an excellent orientation is "Orthodoxy 101," by Fr. Evagoras Constatinidis. Somewhat out of date, but written so that one w/a Western/American perspective can relate, is Fr. Anthony Coniaris' "Introducing the Orthodox Church."
Clark Carlton's books, though superb, are a complex for a neophyte, but you be the judge.
Over the past 35 years, the three presiding priests of my parish have used these books for non-Orthodox spouses who are preparing for marriage in the Orthodox Church, and may not necessarily be preparing for conversion.