Is the database normalized?

Question

Database

Good day. Experts prompt the DB is how much normalized. What do you think could be changed?

CREATE TABLE `site_catalog_items` (
  `id` INT(30) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT 'уникальный номер ',
  `thumbnail` VARCHAR(255) NOT NULL DEFAULT '/content/images/default_thumb.png' COMMENT 'миниатюра',
  `image` VARCHAR(255) NOT NULL DEFAULT '/content/images/ .png' COMMENT 'фото',
  `category` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'категория',
  `material` VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'материал',
  `region` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'район',
  `district` VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'населенный пункт',
  `town` VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'город',
  `digging` VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'раскоп',
  `layer` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'слой',
  `square` VARCHAR(10) NOT NULL DEFAULT '' COMMENT 'квадрат',
  `fieldNumber` VARCHAR(30) NOT NULL DEFAULT '' COMMENT 'полевой номер',
  `area` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'участок',
  `homestead` VARCHAR(20) NULL DEFAULT '' COMMENT 'усадьба',
  `gps` VARCHAR(30) NULL DEFAULT '' COMMENT 'координаты позитирования',
  `year` YEAR NOT NULL DEFAULT '2013' COMMENT 'год',
  `title` VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'наименование ',
  `description` MEDIUMTEXT NULL COMMENT 'описание ',
  `dating` VARCHAR(20) NULL DEFAULT '' COMMENT 'датировка',
  `storagePlace` VARCHAR(20) NOT NULL DEFAULT '' COMMENT 'место хранения',
  `notes` MEDIUMTEXT NULL COMMENT 'блокнот',
  PRIMARY KEY (`id`),
  INDEX `cost` (`title`),
  INDEX `category_realm` (`category`, `material`) USING BTREE
)
COLLATE='utf8_general_ci'
ENGINE=MyISAM
AUTO_INCREMENT=8;

Answer 1

Is the database normalized?

no
To improve the situation, consider how best to store duplicate data for the following fields
category
material
region
district
town
digging