Reading comprehension. Reading comprehension is a tricky concept to teach. After reading classes have worked to establish a person’s understanding of a word, the comprehension begins. Classes for reading comprehension will focus on what has been said, and deeper themes. A common story used for advanced reading comprehension is the Joseph Conrad story Heart of Darkness. One one hand, it’s a travelogue about a trip up a river and the various things that are seen. Comprehension starts with being able to understand what is happening during the trip. The further themes of imperialism, exploitation, and corruption (among others) are the secondary comprehension goal.