Al-'Arabiyya is the annual journal of the American Society for Teachers of Arabic. It includes scholarly articles that advance the study, research, and teaching of Arabic language, linguistics, literature, and pedagogy.The five articles published in Volume 54 of Al-'Arabiyya contribute to timely topics in their own respective fields within Arabic language: morphosyntax, first language acquisition, heritage speakers, language and medicine, and online technical and scientific terminology portals.This volume also includes five reviews of books whose contents and scope range from Arabic foreign language pedagogy, Arabic sociolinguistics, Arabic translation in early modern Spain, Islamic architecture and related artistic and cultural history, and to cross-cultural encounters in pre-modern Moroccan and European travel writings.