These articles are by no means elementary, rather they tend to deal with the more fundamental aspects of Christianity. Some of the articles however could just as well have been placed into the Deeper Concepts section. These "fundamental" articles are neither easier to understand or more difficult; just different.
To some degree these articles are for people that have a better understanding of the fundamentals of Christianity, however, this might not always be the case. If you are trying to gain understanding on some special topic you might look here if it is not found in the Fundamentals Concepts section.
These studies must be read and understood in sequence. The understanding of the biblical prophecies is not difficult, but it does take a great deal of time and effort. Understanding the prophecies is almost exactly like learning a new language. You must first learn the letters and words before moving on to grammar. Light reading will only breed confusion.
These studies consist of the parable text followed by a multiple choice quiz. Each quiz question has explanations as to its content and the learning takes place when you follow through and read all of the explanations to questions that you don't fully understand. You must not take your "score" to heart. It is not about getting a high score. It is about learning and understanding.
These quizzes are more than just fun, they are also important in that they reinforce your knowledge of many pivotal events in the Scriptures. The Bible was not read looking for trivia questions, but rather the questions all came to mind as the quiz was written. Many of the questions were designed to reveal commonly misunderstood doctrines, in the hope of making you think deeply about it and learn important truths.
Different voices have the ability to jog un thought of connections and understanding in the mind of the reader. Different authors tend to approach a topic from different directions which can unlock certain understandings. It isn't that the conclusions are different, only the path toward them is different.