ABSTRACT Himah, Nur (2021): The Illocutionary Speech Acts Analysis of Written Conversation in Textbook Entitled “Bahasa Inggris†Used By Tenth Graders. A Paper. English Department. Education and Teachers Training Faculty Tidar University. First Consultant Dr. Dwi Winarsih, M.Pd., Second Consultant Gilang Fadhilia A., M.Hum. Keywords: illocutionary acts, textbook, communicative com…