It is important for every student in Ohio to attend school every day. Missing too much school has longterm, negative effects on students, such as lower achievement and graduation rates. There are many reasons students miss school, but districts often can directly impact their students' attendance. By using data to identify and support students who may need extra support and services, districts can target supports to get students to school every day. The purpose of this resource guide is to assist school districts in strategically planning and implementing prevention and interventions universally and at the student-level to reduce absenteeism because it is important for Ohio's students to be in school every day ready to learn. Oftentimes, non-academic barriers keep students from attending school every day. By systematically incorporating student supports into district and school improvement activities, many of these barriers can be addressed before they keep Ohio's students out of the classroom. Further, community partnerships can augment this work and inform the work of schools and districts. Lastly, developing personalized attendance plans for students who are chronically absent or habitually truant allows teams to address unique barriers to attendance. This guidance will answer six key questions for schools and districts: (1) What is chronic absenteeism? (2) What factors impact attendance? (3) Why is chronic absenteeism a priority for Ohio? (4) What can a district do to improve attendance? (5) Who else can be involved to reduce absenteeism? and (6) What are examples of strategies that schools are implementing to meet the needs of students that may help address attendance concerns? This guide also provides resources to assist districts in implementing attendance policies, implementing preventative and supportive strategies for attendance and discipline, and facilitating conversations about attendance with students and families.