diff --git a/Introduction to Probability, Statistics, and Random Processes - Hossein Pishro-Nik.pdf b/textbooks/Introduction to Probability, Statistics, and Random Processes - Hossein Pishro-Nik.pdf similarity index 100% rename from Introduction to Probability, Statistics, and Random Processes - Hossein Pishro-Nik.pdf rename to textbooks/Introduction to Probability, Statistics, and Random Processes - Hossein Pishro-Nik.pdf