  We describe in elementary geometrical terms Teichm\" uller spaces of
decorated and holed surfaces. We construct explicit global coordinates on them
as well as on the spaces of measured laminations with compact and closed
support respectively. We show explicitly that the latter spaces are
asymptotically isomorphic to the former. We discuss briefly quantisation of
Teichm\" uller spaces and some other application of the constructed approach.
The paper does not require any preliminary knowledge of the subject above the
Poincar\' e uniformisation theorem.
