  Notes from a course at the ATM Workshop on Schubert Varieties, held at The
Institute of Mathematical Sciences, Chennai, in November 2017.
  Various expansions of Schur functions, the Lindstr\"om-Gessel-Viennot lemma,
semistandard Young tableaux, Schensted's insertion algorithm, the plactic
monoid, the RSK correspondence, and the Littlewood-Richardson rule are
discussed.
