Eléments de sémiologie (excerpt: The first half of the book)
(engl., ed.: Elements of Semiology, 1964, Hill and Wang, 1968)
at Marxists Internet Archive
[www.marxists.org/reference/subject/philosophy/works/fr/barthes.htm]

Le discours de l'histoire (article 1981)
(engl.: S. Bann)
at University of Florida
[www.clas.ufl.edu/users/pcraddoc/barthes.htm]