  For each Montesinos knot $K$, we propose an efficient method to explicitly
determine the irreducible ${\rm SL}(2,\mathbb{C})$-character variety, and show
that it can be decomposed as
$\mathcal{X}_0(K)\sqcup\mathcal{X}_1(K)\sqcup\mathcal{X}_2(K)\sqcup\mathcal{X}'(K)$,
where $\mathcal{X}_0(K)$ consists of trace-free characters, $\mathcal{X}_1(K)$
consists of characters of "unions" of representations of rational knots (or
rational link, which appears at most once), $\mathcal{X}_2(K)$ is an algebraic
curve, and $\mathcal{X}'(K)$ consists of finitely many points when $K$
satisfies a generic condition.
