 Layered double hydroxides, LDHs, also well known as hydrotalcite-like layered clays, have been widely investigated in the fields of catalysts and catalyst support, anion exchanger, electrical and optical functional materials, flame retardants and nano additives. This feature article focuses on the progress in micro-slash nanostructured LDHs in terms of morphology, and also on the preparations, applications, and perspectives of the LDHs with different morphologies. This article was authored by Ming Dong Dong, Sa Long Su, Fajie Zhang, and others.