ABSTRACT Holilah, 2011, The Effect of Textbook Readability on Students’ Reading Comprehension at SMP Al- Mujtama’ Plakpak Pegantenan Pamekasan. Undergraduate, Thesis, English Teaching Learning Program (TBI), The state of Islamic college (STAIN) Pamekasan. Advisor: Mulyadi, SS. M.Pd. Keywords: Readability, Textbook, Reading comprehension. In academical setting, reading is one of languag…