Part I: Papers by Plenary Speakers, Hu Peterson, Caputo Nabla Fractional Boundary Value Problems.- M. Pituk, A Note on Ergodicity for Nonautonomous Linear Difference Equations.- M. L. Kolomiets and A. L. Shilnikov, Poincare return maps in neural dynamics: three examples.- H. R. Thieme, Persistent discrete-time dynamics on measures.- P. J. Y. Wong, Discrete Splines and its Applications.- Part II: Contributed Papers, A. S. Ackleh, Md I. Hossain, Amy Veprauskas and A. Zhang, Persistence of a discrete-time predator-prey model with stage-structure in the predator.- J. B. Bacani and J. F. T. Rabago, Techniques on solving systems of nonlinear difference equations.- J. Cao, T. Cai and Li-Ping Cai, A note on q-partial differential equations for generalized q-2D Hermite polynomials.- D. Arugaslan Cincin and Nur Cengiz, The Stability of a Spring-Mass System with Generalized Piecewise Constant Argument.- J. M. Cushing, A Darwinian Ricker Equation.- B. Heim and M. Neuhauser, Difference equations related to number theory.- S. Kapcak, A Note on Non-hyperbolic Fixed Points of One-dimensional Maps.- F. Karakoc, Impulse Effect on a Population Model with Piecewise Constant Argument.- Y. Kostrov and Z. Kudlak, On a Second-Order Rational Difference Equation with Quadratic Terms, Part II.- Ye Li and Jiawei Xu, Population Motivated Discrete-time Disease Models.- V. V. Martseniuk, S. L. Gefter and A. L. Piven, Uniqueness criterion and Cramer's rule for implicit higher order linear difference equations over Z.- N. Pop, L. Vladareanu and V. Vladareanu, On the Neumann boundary optimal control of a frictional quasistatic contact problem with dry friction.- Y. Raffoul, Recent Results On Summations And Volterra Difference Equations Via Lyapunov Functionals.- G. Belitskii and V. Rayskin, New Method of Smooth Extension of Local Maps on Linear Topological Spaces. Applications and Examples.- G. Bastien and M. Rogalski, QRT-Families of Degree four Biquadratic Curves each of them has Genus Zero, Associated Dynamical Systems.- B. Ryals, Stability of Discrete-Time Coupled Oscillators via Quotient Dynamics.- T. Candan, M. Saburov and U. Ufuktepe, Reaching a consensus via Krause mean processes in multi-agent systems: Quadratic stochastic operators.- K. Saito, Global Attractivity For a Volterra Difference Equation.- L. Silva, Bifurcation scenarios under symbolic template iterations of flat top tent maps.- P. Zemánek, Linear operators associated with differential and difference systems: What is different?.