diff --git a/src/actions.ts b/src/actions.ts
index eae924d4..94cf45a4 100644
--- a/src/actions.ts
+++ b/src/actions.ts
@@ -86,6 +86,9 @@ export const UPDATE_COLLECTION = 'UPDATE_COLLECTION';
 export const UPDATE_RENDER_OFFSET = 'UPDATE_RENDER_OFFSET';
 export const UPDATE_COLLECTION_SHAPSHOT = 'UPDATE_COLLECTION_SHAPSHOT';
 export const RANDOMIZE_SALT = 'RANDOMIZE_SALT';
+export const SELECT_CARDS = 'SELECT_CARDS';
+export const UNSELECT_CARDS = 'UNSELECT_CARDS';
+export const CLEAR_SELECTED_CARDS = 'CLEAR_SELECTED_CARDS';
 //Comments
 export const COMMENTS_UPDATE_THREADS = 'COMMENTS_UPDATE_THREADS';
 export const COMMENTS_UPDATE_MESSAGES = 'COMMENTS_UPDATE_MESSAGES';
@@ -371,6 +374,20 @@ type ActionRandomizeSalt = {
 	type: typeof RANDOMIZE_SALT
 };
 
+type ActionSelectCards = {
+	type: typeof SELECT_CARDS,
+	cards: CardID[]
+};
+
+type ActionUnselectCards = {
+	type: typeof UNSELECT_CARDS,
+	cards: CardID[]
+};
+
+type ActionClearSelectedCards = {
+	type: typeof CLEAR_SELECTED_CARDS
+};
+
 type ActionCommentsUpdateThreads = {
 	type: typeof COMMENTS_UPDATE_THREADS,
 	threads: CommentThreads
@@ -974,6 +991,9 @@ export type SomeAction = ActionAIRequestStarted
 	| ActionUpdateRenderOffset
 	| ActionUpdateCollectionSnapshot
 	| ActionRandomizeSalt
+	| ActionSelectCards
+	| ActionUnselectCards
+	| ActionClearSelectedCards
 	| ActionCommentsUpdateThreads
 	| ActionCommentsUpdateMessages
 	| ActionUpdateCards
diff --git a/src/actions/collection.ts b/src/actions/collection.ts
index 767a0c91..f758c325 100644
--- a/src/actions/collection.ts
+++ b/src/actions/collection.ts
@@ -72,9 +72,12 @@ import {
 } from '../types.js';
 
 import {
+	CLEAR_SELECTED_CARDS,
 	RANDOMIZE_SALT,
+	SELECT_CARDS,
 	SHOW_CARD,
 	SomeAction,
+	UNSELECT_CARDS,
 	UPDATE_COLLECTION,
 	UPDATE_COLLECTION_SHAPSHOT,
 	UPDATE_RENDER_OFFSET
@@ -493,4 +496,24 @@ export const waitForFinalCollection = async (description : CollectionDescription
 	if (!collection) throw new Error('We somehow settled without a collection');
 
 	return collection;
+};
+
+export const selectCards = (cards : CardID[]) : SomeAction => {
+	return {
+		type: SELECT_CARDS,
+		cards
+	};
+};
+
+export const unselectCards = (cards : CardID[]) : SomeAction => {
+	return {
+		type: UNSELECT_CARDS,
+		cards
+	};
+};
+
+export const clearSelectedCards = () : SomeAction => {
+	return {
+		type: CLEAR_SELECTED_CARDS
+	};
 };
\ No newline at end of file
diff --git a/src/reducers/collection.ts b/src/reducers/collection.ts
index 617cbfa6..618fada0 100644
--- a/src/reducers/collection.ts
+++ b/src/reducers/collection.ts
@@ -12,6 +12,9 @@ import {
 	UPDATE_READS,
 	UPDATE_READING_LIST,
 	SomeAction,
+	SELECT_CARDS,
+	UNSELECT_CARDS,
+	CLEAR_SELECTED_CARDS,
 } from '../actions.js';
 
 import {
@@ -111,6 +114,24 @@ const app = (state : CollectionState = INITIAL_STATE, action : SomeAction) : Col
 			...state,
 			randomSalt: randomString(16)
 		};
+	case SELECT_CARDS:
+		return {
+			...state,
+			selectedCards: {
+				...state.selectedCards,
+				...Object.fromEntries(action.cards.map(id => [id, true]))
+			}
+		};
+	case UNSELECT_CARDS:
+		return {
+			...state,
+			selectedCards: Object.fromEntries(Object.entries(state.selectedCards).filter(([id, _]) => !action.cards.includes(id)))
+		};
+	case CLEAR_SELECTED_CARDS:
+		return {
+			...state,
+			selectedCards: {}
+		};
 	default:
 		return state;
 	}