This book covers, molecular cages and capsules with functionalized inner surfaces, drug delivery by water-soluble organ metallic cages, reversibly expanded encapsulation complexes, container molecules based on imine type ligands, molecular capsules derived from resorcinarenes, coronates, spherical containers, bowl-shaped surfaces, and porous 1D-, 2D-, 3D-metallo-coordination polymers, and metallodendrimers.