The book contains 35 parables that Jesus gave to us during His earthly ministry, plus a few of His sayings that are also marked as parables.
Jesus started His ministry by giving us the parable of new ways and old ways, then the principle of sowing and reaping. Followed by teaching parables and kingdom parables and ending with prophetic and warning parables. Each parable is presented clearly, with a concise summary after it. Thus, trying not to detract from the spoken parable but rather, allowing the reader to meditate further on its truth and application. For God's Word and teachings must always remain the centerpiece of our study.
Understanding the mysteries of the kingdom of God is a must for all believers. For prophecy tells us that if we understand and apply them, we would then be converted and healed. This by itself should be ample reason to desire to understand the parables of the Bible.