This eBook is the premier volume of our "Mental Illness/Central Nervous System" series, focussing specifically on " NEUROCOGNITIVE DISORDERS (NCDS)". This eBook release encompasses diagnoses such as delirium, major or mild neurocognitive disorder due to alzheimer's disease, major or mild frontotemporal neurocognitive disorder (NCD), major or mild neurocognitive disorder with lewy bodies, vascular neurocognitive disorder, major or mild neurocognitive disorder (NCD) due to traumatic brain injury (TBI), substance/medication-induced major or mild neurocognitive disorders, major or mild neurocognitive disorder due to HIV infection, major or mild neurocognitive disorder due to prion disease, major or mild neurocognitive disorder probably due to parkinson's disease, major or mild neurocognitive disorder due to huntington's disease and others. The content comprises a total of 307 "MCQs with Guiding Answers" and 264 "Linked References". This eBook also contains numerous "Study Highlights or Summary Keypoints" alongside the "CLINICAL PRACTICE INSIGHTS" section. Our primary clients include medical professionals, clinical pharmacists or PharmDs, nurses, and various other individuals in the healthcare sector, such as mentors, residents, and students. We adhere to conventional design principles for all our sequential eBook publications to circumvent the trend of "hypercoloremia mania" in eBook design. This predominantly employs the official black and white colour scheme. This publication resulted from a collaborative effort with my skilled and dedicated coauthors, namely PharmDs Leen Albishawi, Najd Alyasjeen, Dana AlTaweel, Farah Qaryouti, Eman Awwad, Arwa Alashqar, Alia' Saidan, Areej Al-Manasyeh, Duaa Alqhaiwi, Marah Hussein, and Kariman Hatem.

Corresponding author; Clinical Pharmacy Specialty "MOH'D NOUR" BANI-YOUNES", MSc Clinical Pharmacy, BCPS, BCCCP, BCNSP, BCACP, BCIDP