Optimal Iterative Learning Control for Multi-agent Consensus Tracking -- Iterative Learning Control for Multi-agent Coordination Under Iteration-Varying Graph -- Iterative Learning Control for Multi-agent Coordination with Initial State Error -- Multi-agent Consensus Tracking with Input Sharing by Iterative Learning Control -- A HOIM-Based Iterative Learning Control Scheme for Multi-agent Formation -- P-type Iterative Learning for Non-parameterized Systems with Uncertain Local Lipschitz Terms -- Synchronization for Nonlinear Multi-agent Systems by Adaptive Iterative Learning Control -- Distributed Adaptive Iterative Learning Control for Nonlinear Multi-agent Systems with State Constraints -- Synchronization for Networked Lagrangian Systems under Directed Graphs -- Generalized Iterative Learning for Economic Dispatch Problem in a Smart Grid -- Summary and Future Research Directions -- Appendix A: Graph Theory Revisit -- Appendix B: Detailed Proofs.