diff --git a/README.md b/README.md
index efe4122..1aaf39a 100644
--- a/README.md
+++ b/README.md
@@ -227,6 +227,8 @@ If you are new to pull requests, checkout Collaborating on projects using issues
   - [x] Update Webhook
   - [x] Delete Webhook
   - [x] Get Webhooks
+- [x] Custom Task Types
+  - [x] Get Custom Task Types
 
 ## License
 This project is released under the terms of the [MIT license](http://en.wikipedia.org/wiki/MIT_License).
diff --git a/clickup/client.go b/clickup/client.go
index bdf1799..b18e1e7 100644
--- a/clickup/client.go
+++ b/clickup/client.go
@@ -49,6 +49,7 @@ type Client struct {
 	Checklists      *ChecklistsService
 	Comments        *CommentsService
 	CustomFields    *CustomFieldsService
+	CustomTaskTypes *CustomTaskTypesService
 	Dependencies    *DependenciesService
 	Goals           *GoalsService
 	Tasks           *TasksService
@@ -131,6 +132,7 @@ func NewClient(httpClient *http.Client, APIKey string) *Client {
 	c.Checklists = (*ChecklistsService)(&c.common)
 	c.Comments = (*CommentsService)(&c.common)
 	c.CustomFields = (*CustomFieldsService)(&c.common)
+	c.CustomTaskTypes = (*CustomTaskTypesService)(&c.common)
 	c.Dependencies = (*DependenciesService)(&c.common)
 	c.Goals = (*GoalsService)(&c.common)
 	c.Tasks = (*TasksService)(&c.common)
diff --git a/clickup/custom_task_types.go b/clickup/custom_task_types.go
new file mode 100644
index 0000000..4261b51
--- /dev/null
+++ b/clickup/custom_task_types.go
@@ -0,0 +1,47 @@
+package clickup
+
+import (
+	"context"
+	"fmt"
+)
+
+type CustomTaskTypesService service
+
+// See https://clickup.com/api/clickupreference/operation/GetCustomItems/
+type GetCustomTaskTypesResponse struct {
+	CustomItems []CustomItem `json:"custom_items,omitempty"` // Array of custom task types.
+}
+
+// See https://clickup.com/api/clickupreference/operation/GetCustomItems/
+type CustomItem struct {
+	Id          int32  `json:"id,omitempty"`          // Custom task type ID.
+	Name        string `json:"name,omitempty"`        // Custom task type name.
+	NamePlural  string `json:"name_plural,omitempty"` // Custom task type plural name.
+	Description string `json:"description,omitempty"` // Custom task type description.
+
+	// Not documented in API explorer
+	Avatar CustomItemAvatar `json:"avatar,omitempty"` // Custom task icon data.
+}
+
+// Not documented in API explorer. Comments are observations.
+type CustomItemAvatar struct {
+	Source string `json:"source,omitempty"` // null (ClickUp Milestone Glyph), fas (Font Awesome Solid), fab (Font Awesome Brands).
+	Value  string `json:"value,omitempty"`  // null is for ClickUp Glyphs, e.g., Task and Milestone.
+}
+
+// See https://clickup.com/api/clickupreference/operation/GetCustomItems/
+func (s *CustomTaskTypesService) GetCustomTaskTypes(ctx context.Context, teamId string) ([]CustomItem, *Response, error) {
+	u := fmt.Sprintf("team/%s/custom_item", teamId)
+	req, err := s.client.NewRequest("GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	gcttr := new(GetCustomTaskTypesResponse)
+	resp, err := s.client.Do(ctx, req, gcttr)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return gcttr.CustomItems, resp, nil
+}
diff --git a/clickup/custom_task_types_test.go b/clickup/custom_task_types_test.go
new file mode 100644
index 0000000..505808c
--- /dev/null
+++ b/clickup/custom_task_types_test.go
@@ -0,0 +1,33 @@
+package clickup
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+func TestCustomTaskTypesService_GetCustomTaskTypes(t *testing.T) {
+	client, mux, _, teardown := setup()
+	defer teardown()
+
+	mux.HandleFunc(("/team/1234/custom_item"), func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		fmt.Fprint(w, `{"custom_items": [{"id": 1300, "name": "Bug", "name_plural": "Bugs", "description": "Custom item type for bugs.", "avatar": { "source": "fas", "value": "bug" }}]}`)
+	})
+
+	ctx := context.Background()
+	customTaskTypes, _, err := client.CustomTaskTypes.GetCustomTaskTypes(ctx, "1234")
+	if err != nil {
+		t.Errorf("CustomTaskTypes.GetCustomTaskTypes returned error: %v", err)
+	}
+
+	want := []CustomItem{
+		{Id: 1300, Name: "Bug", NamePlural: "Bugs", Description: "Custom item type for bugs.", Avatar: CustomItemAvatar{Source: "fas", Value: "bug"}},
+	}
+	if !cmp.Equal(customTaskTypes, want) {
+		t.Errorf("CustomTaskTypes.GetCustomTaskTypes returned %+v, want %+v", customTaskTypes, want)
+	}
+}
diff --git a/clickup/tasks.go b/clickup/tasks.go
index d6577eb..d05c6e8 100644
--- a/clickup/tasks.go
+++ b/clickup/tasks.go
@@ -16,6 +16,7 @@ type GetTasksResponse struct {
 
 type GetBulkTasksTimeInStatusResponse map[string]TasksInStatus
 
+// See https://clickup.com/api/clickupreference/operation/CreateTask/
 type TaskRequest struct {
 	Name                      string                     `json:"name,omitempty"`
 	Description               string                     `json:"description,omitempty"`
@@ -33,6 +34,7 @@ type TaskRequest struct {
 	LinksTo                   string                     `json:"links_to,omitempty"`
 	CheckRequiredCustomFields bool                       `json:"check_required_custom_fields,omitempty"`
 	CustomFields              []CustomFieldInTaskRequest `json:"custom_fields,omitempty"`
+	CustomItemId              int                        `json:"custom_item_id,omitempty"` // To create a task that doesn't use a custom task type, either don't include this field in the request body, or send 'null'. To create this task as a Milestone, send a value of 1. To use a custom task type, send the custom task type ID as defined in your Workspace, such as 2.
 }
 
 type CustomFieldInTaskRequest struct {
@@ -43,6 +45,7 @@ type CustomFieldInTaskRequest struct {
 type Task struct {
 	ID              string                 `json:"id"`
 	CustomID        string                 `json:"custom_id"`
+	CustomItemId    int                    `json:"custom_item_id"` // A null value means this item is a task. A value of 1 is a Milestone. Any other number is a custom task type.
 	Name            string                 `json:"name"`
 	TextContent     string                 `json:"text_content"`
 	Description     string                 `json:"description"`
diff --git a/clickup/tasks_test.go b/clickup/tasks_test.go
index a2c692c..05a69a2 100644
--- a/clickup/tasks_test.go
+++ b/clickup/tasks_test.go
@@ -19,6 +19,7 @@ func TestTasksService_GetTask(t *testing.T) {
 			`{
 				"id": "9hx",
     		    "custom_id":null,
+    		    "custom_item_id": null,
     		    "name": "Task Name",
     		    "text_content": "New Task Description",
     		    "description": "New Task Description",
@@ -80,10 +81,11 @@ func TestTasksService_GetTask(t *testing.T) {
 	}
 
 	want := &Task{
-		ID:          "9hx",
-		Name:        "Task Name",
-		TextContent: "New Task Description",
-		Description: "New Task Description",
+		ID:           "9hx",
+		CustomItemId: 0,
+		Name:         "Task Name",
+		TextContent:  "New Task Description",
+		Description:  "New Task Description",
 		Status: TaskStatus{
 			Status:     "in progress",
 			Color:      "#d3d3d3",