Alexandra, we are all learning as we go. A great place to start with Boff would be his book - Understanding Liberation Theology. (I'd also make another suggestion of another book - God of Surprises by Gerry Hughes SJ.)

Another book I keep with me constantly is called The Community Bible (from the Philippines.) The footnotes give comments about the texts from the point of view of the poor and oppressed. The insights at times are so beautiful. Boff helped these 'poor' read the gospels and articulate their meaning for them.