The Foundations of Arabic Linguistics II contains eleven studies of grammatical theories in Sibawayhi's Kitāb (end 8th century C.E.) and their reception in the later grammatical literature.

Amal E. Marogy is Affiliated Researcher in Neo-Aramaic Studies at the University of Cambridge and Founder Director of Aradin Charitable Trust. Her publications include: Kitāb Sībawayhi: Syntax and pragmatics (2010) and The Foundations of Arabic Linguistics: Sībawayhi and early Arabic grammatical theory (2012).
Kees Versteegh is emeritus-professor of Arabic and Islam at the University of Nijmegen. He specializes in historical linguistics and the history of linguistics. He published The Arabic language (revised ed. 2014) and was editor-in-chief of the Encyclopedia of Arabic language and linguistics (2006-2009).