Eastern Europe is highly represented by the contributing mathematicians, some of whom also come from western Europe, the US, Asia, and Qatar. The 31 papers explore such aspects of difference equations as a condition for transitivity of Lorenz maps, invariant manifolds as pullback attractors on non-autonomous difference equations, solutions bounded on the whole line for perturbed difference systems, rational third-order difference equations, some discrete nonlinear inequalities and applications to boundary value problems, the bifurcation of almost-periodic solutions in a difference equation, and oscillation theorems for a class of fourth-order nonlinear difference equations.