1. Introduction
2. The CLASSIX Galaxy Cluster Survey
3. Methods
4. Results
4.1. The Superclusters
4.2. Supercluster Multiplicity Function
5. Discussion
5.1. Effect of the Lower Luminosity Limit for Member Clusters
5.2. Comparison to Previous Studies of Superclusters of Clusters
5.3. Comparison to Other Studies of the Large-Scale Structure
5.4. Luminosity Distribution of Supercluster Members
6. Summary and Conclusion