Semester 1fall
Building the department map…
Building the department map…
Department paths
Courses with no prerequisites inside the department that unlock the most downstream work.
The shortest canonical route from each entry point to a gateway course.
A suggested order for the 2 courses on the map, built from prerequisite chains and how often each course has run in fall and spring across the last 12 regular terms. It is not the department’s plan, and it is not a promise a course will run. Confirm against the department’s own advising material.
Semester 1fall
Generated from Harvard University’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
Semester 2spring
Each of these unlocks the largest share of downstream work on this map. Courses from other departments can appear here when they genuinely gate E-PSCI coursework.
Intro tiers at the top, advanced work below; arrows point from a prerequisite to the course it unlocks. Courses from other departments appear where they gate E-PSCI work. Click any course to see what it requires and unlocks without leaving this page; hovering lights up its neighbors. The lists on this page carry the same courses in text form.
Showing the 2 E-PSCI and feeder courses that have prerequisite links. 38 more E-PSCI courses have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
Upper-level clusters, grouped by the gateway that opens them.
The deepest prerequisite chains in E-PSCI. These are the routes that take the most semesters to climb.
2 courses deep, ending at E-PSCI 99B
All E-PSCI courses in the Harvard catalog
Grade medians are for verified students. Sign in with your school email to see them.
Use your school emailInstructors on E-PSCI sections in Spring 2027, from the registrar's schedule.
No clubs or organizations on record under E-PSCI yet.
This shows once five students share their club memberships.
E-PSCI does not run a page here yet. When it does, its events show up here and on the Harvard campus feed.