Effects of Peri-Adolescent Licit and Illicit Drug Use on the Developing CNS: Part II, Volume 161, in the International Review on Neurobiology serial highlights new advances, with this volume presenting chapters on topics including Introduction to Effects of Peri-Adolescent Licit and Illicit Drug Use on the Developing CNS, Peri-adolescent Exposure to (Meth)amphetamine in Animal Models, The Impact of Adolescent Nicotine Exposure on Alcohol Use During Adulthood: The Role of Neuropeptides, Cannabis Exposure During Adolescence: A uniquely Sensitive Period for Neurobiological Effects, The Stoned Age: Sex Differences in the Effects of Adolescent Cannabinoid Exposure on Prefrontal Cortex Structure and Function in Animal Models, and more.