Purnawati Penguji 1 Ambuy Sabur Penguji 1 Irmala Sukendra Ketua Penguji Andri Kurniawan Dosen Pembimbing 2 Tenia Ramalia Dosen Pembimbing 1 Eni Khoiriyah Pengarang

The purpose of this study is to determine whether posters can improve the writing of descriptive texts among tenth grade students of SMK Jaya Buana Tangerang Regency in the 2022-2023 academic year. This study is a quantitative study using 60 students as samples with a sample of X TKJ 1 and X TKJ2 students taken nonrandomly using a non-equivalent control design pseudoexperiment. Student tests were used by researchers to collect data through pre-test and post-test. The results of this study are statistical calculations with One-Sample Kolmogorov-Smirnov, it is known that the asymptotic significance of the pre-test and post-test on the experimental class data is 0.000 <0.05. It can be concluded that Ha is accepted and Ho is rejected. This means that there is a significant difference in the use of poster media to improve students' writing skills in descriptive text. Therefore, it can be concluded that there is a positive effect of using posters on improving the writing skills of class X students of SMK Jaya Buana Kabupaten Tangerang. Keywords: Effects, Descriptive