Approximately 450 million people worldwide speak Spanish as their native language-the second most common language behind Mandarin Chinese and marginally ahead of English (Lewis, Simons, & Fennig, 2015;Moreno Fernandez & Otero Roth, 2007). An additional 100 million people speak Spanish as their second or foreign language, and demographic trends indicate that the percentage of the world population who speak Spanish is increasing at a faster rate than any other major language (Instituto Cervantes, 2016). In the United States, approximately 38 million people age 5 and older speak Spanish, including 4 million adults older than age 60 (U.S. Census Bureau, 2013). In the next few decades, the percentage of the U.S. population age 65 and older is expected to grow from 15% to 24%, and by 2050 it is projected that Hispanics will constitute almost one-fifth of older adults (U.S. Census Bureau, 2014Bureau, , 2015. As this population expands, psychologists will face an ever-growing demand for professional services delivered in Spanish (Casas et al., 2012;Strutt, Burton, Resendiz, & Peery, 2016). U.S. national data on the language skills of mental health providers are lacking, but available practitioner surveys have shown that the proportion of psychologists who identify themselves as Hispanic is approximately 3% (American Psychological Association, 2010;Elbulok-Charcape, Rabin, Spadaccini, & Barr, 2014; U.S. Department of Health and Human Services, 2001). Because ethnicity is an imperfect proxy for language proficiency, this figure likely overestimates the number of Hispanic psychologists who are fluent in Spanish. Consequently, the discrepancy between projected immigration and demographic trends and the availability of providers who are fluent in Spanish suggests that psychologists are increasingly likely to evaluate Spanishspeaking adults through the use of interpreters and bilingual psychometrists (Casas et al., 2012;Searight & Searight, 2009).The neuropsychological assessment of Spanish speakers encompasses a complex array of historical, cultural, and psychometric considerations. A single chapter will not suffice to do justice to the topics involved. However, comprehensive treatments are readily available (e.g.,