  These notes provide three contributions to the (well-established)
representation theory of Dynkin and Euclidean quivers. They should be helpful
as part of a direct approach to study representations of quivers, and they may
shed some new light on properties of Dynkin and Euclidean quivers.
  Part 1 deals with the case A (see arXiv:1304.5720). Part 2 concerns the case
D. We show that the category of representation of D_n contains a full
subcategory which is equivalent to the category of representations of a quiver
of type D_{n-1} such that the remaining indecomposable representations are
thin. This suggests an inductive procedure to deal with the D-cases, starting
with D_3 = A_3. Part 3 deals with the cases E. It provides a uniform way to
construct the maximal indecomposable representation for these Dynkin quivers as
well as a unified method to deal with the corresponding Euclidean quivers.
  The level of the presentation varies considerably and increases throughout
the discussion. Whereas Part 1 is completely elementary, just based on some
results in linear algebra, the further text is less self-contained and uses
one-point extensions, simplification, perpendicular categories,
Auslander-Reiten quivers and hammocks.
