The global halal industry is growing exponentially. But what is halal? Is it simply limited to halal meat, which, in a broader context, may not always be "lawful or permitted" -- the literal meaning of halal? Is there more to halal than cosmetics and skin care, sharia-compliant investments and non-alcoholic drinks? How has the concept of halal been perceived in Islamic law and Muslim history? What significance does the concept have for conspicuous consumption, sustainability, the environment, and the very survival of Planet Earth? And what impact might a more refined exploration of halal have, in terms of building a more diverse and ethical future for all? This issue explores the past, present and future of the very idea of halal. About Critical Muslim: A quarterly publication of ideas and issues showcasing groundbreaking thinking on Islam and what it means to be a Muslim in a rapidly changing, interconnected world. Each edition centers on a discrete theme, and contributions include reportage, academic analysis, cultural commentary, photography, poetry, and book reviews.