diff --git a/docs/02-sheets.md b/docs/02-sheets.md
index 3b96556..f933b30 100644
--- a/docs/02-sheets.md
+++ b/docs/02-sheets.md
@@ -87,12 +87,12 @@ $rowOptions = [
     'border' => 'thin',
     'height' => 28,
 ];
-$sheet1->writeRow(['aaa', 'bbb', 'ccc'], $rowOptions);
+$sheet->writeRow(['aaa', 'bbb', 'ccc'], $rowOptions);
 ```
 Other way with the same result
 
 ```php
-$sheet1->writeRow(['aaa', 'bbb', 'ccc', null, 'eee'])
+$sheet->writeRow(['aaa', 'bbb', 'ccc', null, 'eee'])
     ->applyFillColor('#fffeee')
     ->applyBorder('thin')
     ->applyRowHeight(28);
@@ -102,25 +102,25 @@ You can set row's height or visibility
 
 ```php
 // Set height of row 2 to 33
-$sheet1->setRowHeight(2, 33);
+$sheet->setRowHeight(2, 33);
 
 // Set height of rows 3,5 and 7 to 33
-$sheet1->setRowHeight([3, 5, 7], 33);
+$sheet->setRowHeight([3, 5, 7], 33);
 
 // Set heights of several rows
-$sheet1->setRowHeights([1 => 20, 2 => 33, 3 => 40]);
+$sheet->setRowHeights([1 => 20, 2 => 33, 3 => 40]);
 
 // Hide row 8
-$sheet1->setRowVisible(8, false);
+$sheet->setRowVisible(8, false);
 
 // Other way
-$sheet1->setRowHidden(8);
+$sheet->setRowHidden(8);
 
 // Hide rows 9, 10, 11
-$sheet1->setRowVisible([9, 10, 11], false);
+$sheet->setRowVisible([9, 10, 11], false);
 
 // Show row 10
-$sheet1->setRowVisible(10, true);
+$sheet->setRowVisible(10, true);
 ```
 IMPORTANT: You can only use the setRowXX() functions on rows numbered at least as high as the current one.
 See [Writing Row by Row vs Direct](/docs/03-writing.md#writing-row-by-row-vs-direct)
@@ -151,9 +151,9 @@ $sheet->setColWidthAuto('D');
 $sheet->setColOptions('D', ['width' => 'auto']);
 
 // Set width of specific columns
-$sheet1->setColWidths(['B' => 10, 'C' => 'auto', 'E' => 30, 'F' => 40]);
+$sheet->setColWidths(['B' => 10, 'C' => 'auto', 'E' => 30, 'F' => 40]);
 // Set width of columns from 'A'
-$sheet1->setColWidths([10, 20, 30, 40], 24);
+$sheet->setColWidths([10, 20, 30, 40], 24);
 
 $colOptions = [
     'B' => ['width' => 10], 
@@ -161,19 +161,34 @@ $colOptions = [
     'E' => ['width' => 30], 
     'F' => ['width' => 40],
 ];
-$sheet1->setColOptions($colOptions);
+$sheet->setColOptions($colOptions);
 
 ```
 You can define a minimal width of columns. Note that the minimum value has higher priority
 ```php
 // Set minimum width to 20 
-$this->setColMinWidth('D', 20);
+$sheet->setColMinWidth('D', 20);
+
 // The value 10 will not be set because it is less than the minimum value
-$this->setColWidth('D', 10);
+$sheet->setColWidth('D', 10);
+
 // But width 30 will be set
-$this->setColWidth('D', 30);
+$sheet->setColWidth('D', 30);
+
 // The column width will be set to the width of the content, but not less than 20
-$this->setColWidthAuto('D');
+$sheet->setColWidthAuto('D');
+
+// Hide column B
+$sheet->setColVisible('B', false);
+
+// Other way
+$sheet->setColHidden('B');
+
+// Hide columns B, E, H
+$sheet->setColVisible(['B', 'E', 'H'], false);
+
+// Show column E
+$sheet->setColVisible('E', true);
 ```
 ### Group/outline rows and columns
 
diff --git a/src/FastExcelWriter/Sheet.php b/src/FastExcelWriter/Sheet.php
index ee05e07..4a53c3f 100644
--- a/src/FastExcelWriter/Sheet.php
+++ b/src/FastExcelWriter/Sheet.php
@@ -841,7 +841,12 @@ public function setColVisible($col, bool $val): Sheet
         $colIndexes = Excel::colIndexRange($col);
         foreach($colIndexes as $colIdx) {
             if ($colIdx >= 0) {
-                $this->_setColAttributes($colIdx, ['hidden' => (int)$val]);
+                if ($val) {
+                    $this->_delColAttributes($colIdx, ['hidden']);
+                }
+                else {
+                    $this->_setColAttributes($colIdx, ['hidden' => 1]);
+                }
             }
         }
 
@@ -998,6 +1003,10 @@ public function getColAttributes(): array
         if ($this->colAttributes) {
             foreach ($this->colAttributes as $colIdx => $attributes) {
                 if ($attributes) {
+                    if (isset($this->colAttributes[$colIdx]['min'], $this->colAttributes[$colIdx]['min']) && count($this->colAttributes[$colIdx]) === 2) {
+                        // only 'min' & 'max'
+                        continue;
+                    }
                     $result[$colIdx] = $attributes;
                     if (!isset($result[$colIdx]['min'])) {
                         $result[$colIdx]['min'] = $colIdx + 1;
@@ -1036,6 +1045,21 @@ public function _setColAttributes(int $colIdx, array $settings)
         }
     }
 
+    /**
+     * @param int $colIdx
+     * @param array $settings
+     *
+     * @return void
+     */
+    public function _delColAttributes(int $colIdx, array $settings)
+    {
+        foreach ($settings as $key) {
+            if ($this->colAttributes[$colIdx][$key]) {
+                unset($this->colAttributes[$colIdx][$key]);
+            }
+        }
+    }
+
     /**
      * Set style of single or multiple column(s)
      *