These books each contain 100 condensed sermon outlines (300 total) and are meant to be a source of ideas for those who preach sermons, present short talks, write articles, etc.
These outlines do not contain every point, Scripture reference, or example that may be used in a sermon. Instead they list the major points along with just enough information to explain the point without getting into too much detail.
These books are called Do It Yourself Sermon Outlines for a reason. While you may find ideas in these books that you can use, you will still need to fill out your lesson with your own points, sub-points, examples, passages, etc. But these outlines can be a great starting point during those times when you are having difficulty settling on a topic.