In recent years, a large number of empirical studies have been carried out on the type, rate, and effectiveness of planned reactive focus on form (FonF). However, incidental reactive and preemptive FonF in general and their linguistic coverage in particular have not enjoyed this much attention. This book explores the frequency of reactive and preemptive incidental FonF, their linguistic coverage, and uptake in a communicatively-oriented EFL Talk Show class, where the primary attention is on negotiation of ideas and meaningful interactions. The book attempts to expand our accounts of FonF by addressing the relationship between preemptive as well as reactive Focus on Form Episodes in terms of their linguistic coverage of vocabulary, grammar and pronunciation in an Iranian Talk Show class. It also examines the correspondence between the linguistic coverage of reactive and preemptive FFEs and the rate of uptake following them. Studying this book is highly recommended for language teachers, SLA researchers, and applied linguists as it provides valuable insights on providing earners with opportunities to attend to linguistic forms during meaning-focused activities.