Cognitive stimulation is a methodology aimed at maintaining or improving cognitive performance in both individuals with deficits and healthy individuals who want to enhance their brain capabilities. The main objective of this cognitive stimulation book is to improve damaged cognitive abilities as well as strengthen those that are preserved. Its use is highly recommended and beneficial for adults with neurodegenerative diseases (Alzheimer's, Parkinson's, multiple sclerosis, dementia, etc.), as well as those with neurological damage due to stroke, traumatic brain injury, etc. Due to the type of exercises proposed, it is also very useful for children with attention deficit, learning difficulties, reading and writing problems, neurodevelopmental disorders, developmental delay, or acquired brain injury. The exercises in this book have been developed by neuropsychologists and are aimed at professionals working in the field of cognitive stimulation, with adult or child populations, as well as individuals who want to improve their own brain performance or that of a family member.