For whom is a composite chart? A married couple? Parents and children? Colleague?
If we take the most common type of overall chart for romantic/sexual couple for a real or hope, then:
1. The first home/AC is the window of the world’s relationship. How do others see those who know or meet them.
2. The 7th house of marriage/DC says something about the stability of the relationship and how they act as a couple.
3. The 4th house/IC reflects their possibility of successfully installing the house together.
4. The 10th house/MC is probably the least relevant until they have a public image as a couple, or a career relationship in their personal relationship.
An old-but-good book is Robert Hand, Overall planet,
