diff --git a/apps/api/src/routes/v1/graphql/schema/courses.graphql b/apps/api/src/routes/v1/graphql/schema/courses.graphql
index ca496793..cc1696f8 100644
--- a/apps/api/src/routes/v1/graphql/schema/courses.graphql
+++ b/apps/api/src/routes/v1/graphql/schema/courses.graphql
@@ -1,3 +1,15 @@
+"An object that contains a subset of a course's metadata, for preview purposes."
+type CoursePreview {
+  "The course ID."
+  id: String!
+  "The department code that the course belongs to."
+  department: String!
+  "The course number of the course."
+  courseNumber: String!
+  "The title of the course."
+  title: String!
+}
+
 "An object that represents a course."
 type Course {
   "The course ID."
@@ -52,6 +64,12 @@ type Course {
   geText: String!
   "The list of terms in which this course was offered."
   terms: [String!]!
+  "The previews for the instructors that have taught this course in the past."
+  instructors: [InstructorPreview!]!
+  "The previews for the courses that are required to take this course."
+  prerequisites: [CoursePreview!]!
+  "The previews for the courses that require this course."
+  dependencies: [CoursePreview!]!
 }
 
 extend type Query {
diff --git a/apps/api/src/routes/v1/graphql/schema/instructors.graphql b/apps/api/src/routes/v1/graphql/schema/instructors.graphql
index d18005fd..843ad689 100644
--- a/apps/api/src/routes/v1/graphql/schema/instructors.graphql
+++ b/apps/api/src/routes/v1/graphql/schema/instructors.graphql
@@ -1,3 +1,13 @@
+"An object that contains a subset of an instructor's metadata, for preview purposes."
+type InstructorPreview {
+  "The instructor's UCINetID."
+  ucinetid: String!
+  "The full name of the instructor."
+  name: String!
+  "The shortened name (or WebSoc name; e.g. ``SHINDLER, M.``) of the instructor."
+  shortenedName: String!
+}
+
 "An object representing an instructor."
 type Instructor {
   "The instructor's UCINetID."