Marcel Danesi (b. Marcello Danesi, 1946) is a current Professor of Semiotics and Linguistic Anthropology at the University of Toronto. He is known for his work in language, communications, and semiotics; being Director of the Program in Semiotics and Communication Theory.
He has also held positions at Rutgers University (1972), The University of Rome "La Sapienza" (1988), the Catholic University of Milan (1990), and the University of Lugano.
He is the Editor-in-Chief of Semiotica: Journal of the International Association for Semiotic Studies and is a past-president of the Semiotic Society of America.
I picked this up after struggling, gobsmacked, to explain the vagaries of the English language to ESOL students in conversation class. It's readable, clear, and has some great exercises. I plan on using this with my students and recommending they buy a copy.