Adult Hispanic ESL students in rural San Luis, Arizona, face a challenging situation. Since San Luis lies on the southwestern tip of Arizona and borders with Mexico, Spanish is the predominant language. English, on the other hand, is mostly heard in classrooms. This can be a predicament for adult Hispanics who need to be proficient in English in order to excel at college or university. What can be done to assist these students? The literature states that one becomes a better reader by reading extensively (Krashen, 1999; Grabe, 2009). How does one get ESL students to read extensively if they are stymied by their limited vocabulary? A solution is graded readers. These are books written specifically for second/foreign language learners and consist of seven to eight levels. According to the literature, as individuals read through the different levels, their vocabulary and reading comprehension will increase (Nation and Wang, 1999; The Extensive Reading Foundation, 2011). Eventually, they will be able to comprehend text written specifically for native English speakers (Waring, 1997). A mixed-methods study was conducted to assess the effect that graded readers vis-a-vis Scaffolded Silent Reading (ScSR) had on adult Hispanic ESL students at a community college on the U.S.-Mexico border. The areas examined were vocabulary growth, reading comprehension, and reading attitude. The findings were promising and showed some growth in vocabulary and reading comprehension for both the treatment and control groups. Furthermore, participants of the treatment group had a positive attitude towards reading graded readers through Scaffolded Silent Reading. There is the need for further studies of a longer duration with adult Hispanic ESL students who live on or near the U.S.-Mexico border. The findings could build on this preliminary study. Furthermore, they contribute to the literature on extensive reading in general and graded readers through Scaffolded Silent Reading, specifically. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]