diff --git a/templates/EbookPlaceholderForm.php b/templates/EbookPlaceholderForm.php
index 9866828c..5f557e93 100644
--- a/templates/EbookPlaceholderForm.php
+++ b/templates/EbookPlaceholderForm.php
@@ -82,6 +82,9 @@ $ebook = $ebook ?? new Ebook();
 			value="<?= Formatter::EscapeHtml((string)($ebook->EbookPlaceholder?->YearPublished)) ?>"
 		/>
 	</label>
+</fieldset>
+<p>For existing collections, leave the type blank. It will be ignored.</p>
+<fieldset>
 	<label class="icon collection">
 		<span>Collection</span>
 		<datalist id="collection-names">
@@ -96,6 +99,16 @@ $ebook = $ebook ?? new Ebook();
 			value="<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 0){ ?><?= Formatter::EscapeHtml($ebook->CollectionMemberships[0]->Collection->Name) ?><? } ?>"
 		/>
 	</label>
+	<label>
+		<span>Type</span>
+		<span>
+			<select name="type-collection-name-1">
+				<option value=""></option>
+				<option value="<?= Enums\CollectionType::Series->value ?>"<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 0 && $ebook->CollectionMemberships[0]->Collection->Type == Enums\CollectionType::Series){ ?> selected="selected"<? } ?>>Series</option>
+				<option value="<?= Enums\CollectionType::Set->value ?>"<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 0 && $ebook->CollectionMemberships[0]->Collection->Type == Enums\CollectionType::Set){ ?> selected="selected"<? } ?>>Set</option>
+			</select>
+		</span>
+	</label>
 	<label class="icon ordered-list">
 		<span>Number in collection</span>
 		<input
@@ -119,6 +132,16 @@ $ebook = $ebook ?? new Ebook();
 				value="<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 1){ ?><?= Formatter::EscapeHtml($ebook->CollectionMemberships[1]->Collection->Name) ?><? } ?>"
 			/>
 		</label>
+		<label>
+			<span>Type</span>
+			<span>
+				<select name="type-collection-name-2">
+					<option value=""></option>
+					<option value="<?= Enums\CollectionType::Series->value ?>"<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 1 && $ebook->CollectionMemberships[1]->Collection->Type == Enums\CollectionType::Series){ ?> selected="selected"<? } ?>>Series</option>
+					<option value="<?= Enums\CollectionType::Set->value ?>"<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 1 && $ebook->CollectionMemberships[1]->Collection->Type == Enums\CollectionType::Set){ ?> selected="selected"<? } ?>>Set</option>
+				</select>
+			</span>
+		</label>
 		<label class="icon ordered-list">
 			<span>Number in collection</span>
 			<input
@@ -140,6 +163,16 @@ $ebook = $ebook ?? new Ebook();
 				value="<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 2){ ?><?= Formatter::EscapeHtml($ebook->CollectionMemberships[2]->Collection->Name) ?><? } ?>"
 			/>
 		</label>
+		<label>
+			<span>Type</span>
+			<span>
+				<select name="type-collection-name-3">
+					<option value=""></option>
+					<option value="<?= Enums\CollectionType::Series->value ?>"<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 2 && $ebook->CollectionMemberships[2]->Collection->Type == Enums\CollectionType::Series){ ?> selected="selected"<? } ?>>Series</option>
+					<option value="<?= Enums\CollectionType::Set->value ?>"<? if(isset($ebook->CollectionMemberships) && sizeof($ebook->CollectionMemberships) > 2 && $ebook->CollectionMemberships[2]->Collection->Type == Enums\CollectionType::Set){ ?> selected="selected"<? } ?>>Set</option>
+				</select>
+			</span>
+		</label>
 		<label class="icon ordered-list">
 			<span>Number in collection</span>
 			<input
diff --git a/www/css/ebook-placeholder.css b/www/css/ebook-placeholder.css
index 4ff74dcc..5b901dc1 100644
--- a/www/css/ebook-placeholder.css
+++ b/www/css/ebook-placeholder.css
@@ -23,12 +23,11 @@ form.create-update-ebook-placeholder fieldset label:has(textarea[name="ebook-pla
 	grid-column: 1 / span 2;
 }
 
-form.create-update-ebook-placeholder fieldset fieldset:has(input[name="sequence-number-collection-name-1"]),
-form.create-update-ebook-placeholder fieldset fieldset:has(input[name="sequence-number-collection-name-2"]),
-form.create-update-ebook-placeholder fieldset fieldset:has(input[name="sequence-number-collection-name-3"]),
-form.create-update-ebook-placeholder fieldset fieldset:has(input[name="ebook-placeholder-year-published"]){
+form.create-update-ebook-placeholder fieldset:has(input[name="sequence-number-collection-name-1"]),
+form.create-update-ebook-placeholder fieldset:has(input[name="sequence-number-collection-name-2"]),
+form.create-update-ebook-placeholder fieldset:has(input[name="sequence-number-collection-name-3"]){
 	display: grid;
-	grid-template-columns: 200px 1fr;
+	grid-template-columns: 1fr 200px 200px;
 	gap: 2rem;
 }
 
@@ -44,6 +43,12 @@ form.create-update-ebook-placeholder summary{
 	font-style: italic;
 }
 
+form.create-update-ebook-placeholder p{
+	margin-bottom: 1rem;
+	margin-top: 1.5rem;
+	font-style: italic;
+}
+
 form.create-update-ebook-placeholder fieldset p{
 	font-style: italic;
 	margin: 0;
diff --git a/www/ebook-placeholders/post.php b/www/ebook-placeholders/post.php
index d9bff187..7fe066cf 100644
--- a/www/ebook-placeholders/post.php
+++ b/www/ebook-placeholders/post.php
@@ -61,6 +61,7 @@ try{
 			}
 			$collectionSequenceNumber = HttpInput::Int(POST, 'sequence-number-' . $collectionNameField);
 			$collection = Collection::FromName($collectionName);
+			$collection->Type = Enums\CollectionType::tryFrom(HttpInput::Str(POST, 'type-' . $collectionNameField) ?? '');
 
 			$cm = new CollectionMembership();
 			$cm->Collection = $collection;