diff --git a/src/YearWeek.php b/src/YearWeek.php
index 3b15760..9c3e0c5 100644
--- a/src/YearWeek.php
+++ b/src/YearWeek.php
@@ -236,6 +236,26 @@ public function atDay(int $dayOfWeek) : LocalDate
         return LocalDate::ofYearDay($this->year - 1, $daysOfPreviousYear + $dayOfYear);
     }
 
+    /**
+     * Returns the first day of this week.
+     *
+     * @return LocalDate
+     */
+    public function getFirstDay() : LocalDate
+    {
+        return $this->atDay(DayOfWeek::MONDAY);
+    }
+
+    /**
+     * Returns the last day of this week.
+     *
+     * @return LocalDate
+     */
+    public function getLastDay() : LocalDate
+    {
+        return $this->atDay(DayOfWeek::SUNDAY);
+    }
+
     /**
      * Returns a copy of this YearWeek with the specified period in years added.
      *