diff --git a/src/MySQL.php b/src/MySQL.php
index 4791094..e62c7af 100644
--- a/src/MySQL.php
+++ b/src/MySQL.php
@@ -136,9 +136,12 @@
 		/* ---- */
 
 		// Create Prepared Statament for SELECT with optional WHERE filters
-		public function select(?array $columns = null): array|bool {
+		public function select(array|string|null $columns = null): array|bool {
 			$this->throw_if_no_table();
 
+			// Create array of columns from CSV
+			$columns = is_array($columns) ? $columns : explode(",", $columns);
+
 			// Filter columns that aren't in the model if defiend
 			if ($columns && $this->model) {
 				$columns = $this->in_model($columns);