diff --git a/Basic/README.md b/Basic/README.md
index 19dcb4f..e4958c0 100644
--- a/Basic/README.md
+++ b/Basic/README.md
@@ -100,4 +100,19 @@ Ushbu bo'limda siz PostgreSQL ma'lumotlar turlarini o'rganishni boshlaysiz va ya
 * [**Foreign key**](<./Understanding PostgreSQL Constraints/Foreign key.md>) - yangi jadval yaratishda yoki mavjud jadvallar uchun xorijiy kalit cheklovlarini qo'shishda tashqi kalit cheklovlarini qanday aniqlashni ko'rsatilgan
 * [**CHECK constraint**](<./Understanding PostgreSQL Constraints/CHECK constraint.md>) - mantiqiy ifodaga asoslangan qiymatni tekshirish uchun mantiq qo'shish.
 * [**UNIQUE constraint**](<./Understanding PostgreSQL Constraints/UNIQUE constraint.md>) - ustun yoki ustunlar guruhidagi qiymatlar jadvalda yagona ekanligiga ishonch hosil qilish.
-* [**NOT NULL constraint**](<./Understanding PostgreSQL Constraints/NOT NULL constraint.md>) - ustundagi qiymatlar `NULL` emasligiga ishonch hosil qilish.
\ No newline at end of file
+* [**NOT NULL constraint**](<./Understanding PostgreSQL Constraints/NOT NULL constraint.md>) - ustundagi qiymatlar `NULL` emasligiga ishonch hosil qilish.
+
+## Section 14. PostgreSQL Data Types in Depth
+* [**Boolean**](<Basic/PostgreSQL Data Types in Depth/Boolean.md>) - Boolen ma'lumot turi bilan `TRUE` va `FALSE` saqlaydi.
+* [**CHAR, VARCHAR and TEXT**](<Basic/PostgreSQL Data Types in Depth/CHAR, VARCHAR and TEXT.md>) - `CHAR`, `VARCHAR` va `TEXT` kabi turli xil belgilar turlaridan qanday foydalanishni o'rganish.
+* [**NUMERIC**](<Basic/PostgreSQL Data Types in Depth/NUMERIC.md>) - aniqlik talab qilinadigan qiymatlarni saqlash uchun NUMERIC turidan qanday foydalanishni ko'rsatish.
+* [**Integer**](<Basic/PostgreSQL Data Types in Depth/Integer.md>) - sizni PostgreSQLda `SMALLINT`, `INT` va `BIGINT` kabi turli xil tamsayılar turlari bilan tanishish
+* [**DATE**](<Basic/PostgreSQL Data Types in Depth/DATE.md>) - sana qiymatlarini saqlash uchun DATE ma'lumotlar turini kiritish.
+* [**Timestamp**](<Basic/PostgreSQL Data Types in Depth/Timestamp.md>) - vaqt tamg'asi ma'lumotlar turlarini tezda tushunish.
+* [**Interval**](<Basic/PostgreSQL Data Types in Depth/Interval.md>) - davrni samarali boshqarish uchun intervalli ma'lumotlar turidan qanday foydalanishni ko'rsatish.
+* [**TIME**](<Basic/PostgreSQL Data Types in Depth/TIME.md>) - kun qiymatlarini boshqarish uchun `TIME` ma'lumotlar turidan foydalaning.
+* [**UUID**](<Basic/PostgreSQL Data Types in Depth/UUID.md>) - `UUID` ma'lumotlar turidan qanday foydalanish va taqdim etilgan modullar yordamida `UUID` qiymatlarini yaratish bo'yicha sizga yo'l-yo'riq.
+* [**Array**](<Basic/PostgreSQL Data Types in Depth/Array.md>) - massiv bilan qanday ishlashni ko'rsatib beradi va massivni manipulyatsiya qilish uchun ba'zi qulay funksiyalar bilan tanishtiradi.
+* [**hstore**](<Basic/PostgreSQL Data Types in Depth/hstore.md>) - sizni PostgreSQLda bitta qiymatda saqlanadigan kalit/qiymat juftliklari to'plami bo'lgan ma'lumotlar turi bilan tanishtiradi.
+* [**JSON**](<Basic/PostgreSQL Data Types in Depth/JSON.md>) - JSON ma'lumotlar turi bilan qanday ishlashni ko'rsating va eng muhim JSON operatorlari va funksiyalaridan qanday foydalanishni ko'rsatish.
+* [**User-defined data types**](<Basic/PostgreSQL Data Types in Depth/User-defined data types.md>) - foydalanuvchi tomonidan belgilangan ma'lumotlar turlarini yaratish uchun `CREATE DOMAIN` va `CREATE TYPE` iboralaridan qanday foydalanishni ko'rsatish.
\ No newline at end of file
diff --git a/SUMMARY.md b/SUMMARY.md
index 0e524b0..55dfb56 100644
--- a/SUMMARY.md
+++ b/SUMMARY.md
@@ -93,6 +93,20 @@
     * [UNIQUE constraint](<Basic/Understanding PostgreSQL Constraints/UNIQUE constraint.md>)
     * [CHECK constraint](<Basic/Understanding PostgreSQL Constraints/CHECK constraint.md>)
     * [NOT NULL constraint](<Basic/Understanding PostgreSQL Constraints/NOT NULL constraint.md>)
+  * [PostgreSQL Data Types in Depth](<Basic/PostgreSQL Data Types in Depth/README.md>)
+    * [Boolean](<Basic/PostgreSQL Data Types in Depth/Boolean.md>)
+    * [CHAR, VARCHAR and TEXT](<Basic/PostgreSQL Data Types in Depth/CHAR, VARCHAR and TEXT.md>)
+    * [NUMERIC](<Basic/PostgreSQL Data Types in Depth/NUMERIC.md>)
+    * [Integer](<Basic/PostgreSQL Data Types in Depth/Integer.md>)
+    * [DATE](<Basic/PostgreSQL Data Types in Depth/DATE.md>)
+    * [Timestamp](<Basic/PostgreSQL Data Types in Depth/Timestamp.md>)
+    * [Interval](<Basic/PostgreSQL Data Types in Depth/Interval.md>)
+    * [TIME](<Basic/PostgreSQL Data Types in Depth/TIME.md>)
+    * [UUID](<Basic/PostgreSQL Data Types in Depth/UUID.md>)
+    * [Array](<Basic/PostgreSQL Data Types in Depth/Array.md>)
+    * [hstore](<Basic/PostgreSQL Data Types in Depth/hstore.md>)
+    * [JSON](<Basic/PostgreSQL Data Types in Depth/JSON.md>)
+    * [User-defined data types](<Basic/PostgreSQL Data Types in Depth/User-defined data types.md>)
 * [Advanced](Advanced/README.md)
 * [PG-PGSQL](PG-PGSQL/README.md)
 * [Functions](Functions/README.md)