Public schools can be a relatively desirable location for efficient and widespread distribution of physical and mental health services to children. However, California provides fewer physical and mental health services in schools than almost any other state. This brief summarizes "Investments in Student Health and Mental Health in California's Public Schools," a technical report which explores access to school-site physical and mental health services available to the general population of K-12 public school students in California, as opposed to those offered as part of special education programs. The report provides an estimate of the costs for substantially improving access to these programs, which often are left out of both education and health policy discussions. Key findings include: (1) Researchers have found that access to school-based health care and mental health services has high value for children, schools, and the state; (2) California ranks at or near the bottom for student access to health care and mental health services at school even though needs are high; (3) Gaps in school-based health care coverage and mental health services occur throughout the state; (4) Outside organizations visit schools to provide school-based health programs, but these efforts are sporadic; (5) Health care and mental health services could be brought up to a basic level for less than $100 per pupil of additional spending; and (6) California is leaving federal money on the table by having unusually low levels of Medicaid spending per student on school-based health care and mental health services. [This brief summarizes the Getting Down to Facts II technical report, "Investments in Student Health and Mental Health in California's Public Schools" (ED594678).]