diff --git a/build.gradle b/build.gradle
index 0cefff2..537619d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -26,6 +26,7 @@ repositories {
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
     compileOnly 'org.projectlombok:lombok'
     runtimeOnly 'com.h2database:h2'
     annotationProcessor 'org.projectlombok:lombok'
diff --git a/src/main/java/doit/jpastudy2/Library/Book.java b/src/main/java/doit/jpastudy2/Library/Book.java
new file mode 100644
index 0000000..0ce7b01
--- /dev/null
+++ b/src/main/java/doit/jpastudy2/Library/Book.java
@@ -0,0 +1,33 @@
+package doit.jpastudy2.Library;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Getter
+@NoArgsConstructor
+public class Book {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long bookId;
+    private String title;
+    private String author;
+    private String publisher;
+    private String isbn;
+    private char available;
+
+    @Builder
+    public Book(String title, String author, String publisher, String isbn, char available) {
+        this.title = title;
+        this.author = author;
+        this.publisher = publisher;
+        this.isbn = isbn;
+        this.available = available;
+    }
+}
diff --git a/src/main/java/doit/jpastudy2/Library/Member.java b/src/main/java/doit/jpastudy2/Library/Member.java
new file mode 100644
index 0000000..74be747
--- /dev/null
+++ b/src/main/java/doit/jpastudy2/Library/Member.java
@@ -0,0 +1,37 @@
+package doit.jpastudy2.Library;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.validation.constraints.Email;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDate;
+
+@Entity
+@Getter
+@NoArgsConstructor
+public class Member {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long memberId;
+    private String name;
+    @Email
+    private String email;
+    private String phone;
+    private LocalDate joinDate;
+    private Long borrow;
+
+    @Builder
+    public Member(String name, String email, String phone, LocalDate joinDate, Long borrow) {
+        this.name = name;
+        this.email = email;
+        this.phone = phone;
+        this.joinDate = joinDate;
+        this.borrow = borrow;
+    }
+}
diff --git a/src/main/java/doit/jpastudy2/Library/repository/BookRepository.java b/src/main/java/doit/jpastudy2/Library/repository/BookRepository.java
new file mode 100644
index 0000000..26cf75a
--- /dev/null
+++ b/src/main/java/doit/jpastudy2/Library/repository/BookRepository.java
@@ -0,0 +1,11 @@
+package doit.jpastudy2.Library.repository;
+
+import doit.jpastudy2.Library.Book;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface BookRepository extends JpaRepository<Book, Long> {
+
+    public Book findByTitleAndAuthor(String title, String author);
+    public Book findByIsbn(String isbn);
+
+}
diff --git a/src/main/java/doit/jpastudy2/Library/repository/MemberRepository.java b/src/main/java/doit/jpastudy2/Library/repository/MemberRepository.java
new file mode 100644
index 0000000..bc93f51
--- /dev/null
+++ b/src/main/java/doit/jpastudy2/Library/repository/MemberRepository.java
@@ -0,0 +1,11 @@
+package doit.jpastudy2.Library.repository;
+
+import doit.jpastudy2.Library.Member;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface MemberRepository extends JpaRepository<Member, Long> {
+
+    public Member findByName(String name);
+    public Member findByEmail(String email);
+    public Member findByPhone(String phone);
+}
diff --git a/src/test/java/doit/jpastudy2/Library/repository/BookRepositoryTest.java b/src/test/java/doit/jpastudy2/Library/repository/BookRepositoryTest.java
new file mode 100644
index 0000000..958fddf
--- /dev/null
+++ b/src/test/java/doit/jpastudy2/Library/repository/BookRepositoryTest.java
@@ -0,0 +1,32 @@
+package doit.jpastudy2.Library.repository;
+
+import doit.jpastudy2.Library.Book;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.transaction.annotation.Transactional;
+
+@Transactional
+@SpringBootTest
+class BookRepositoryTest {
+
+    @Autowired
+    BookRepository bookRepository;
+
+    @Test
+    void test(){
+        Book book = Book.builder()
+                .title("모순")
+                .author("양귀자")
+                .isbn("9788998441012")
+                .publisher("쓰다")
+                .build();
+
+        bookRepository.save(book);
+
+        Book book1 = bookRepository.findByTitleAndAuthor("모순","양귀자");
+
+        System.out.println("Member Id = " + book1.getBookId());
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/java/doit/jpastudy2/Library/repository/MemberRepositoryTest.java b/src/test/java/doit/jpastudy2/Library/repository/MemberRepositoryTest.java
new file mode 100644
index 0000000..4312e30
--- /dev/null
+++ b/src/test/java/doit/jpastudy2/Library/repository/MemberRepositoryTest.java
@@ -0,0 +1,36 @@
+package doit.jpastudy2.Library.repository;
+
+import doit.jpastudy2.Library.Member;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+@Transactional
+@SpringBootTest
+class MemberRepositoryTest {
+
+    @Autowired
+    MemberRepository memberRepository;
+
+    @Test
+    void test(){
+        Member member = Member.builder()
+                .name("문소현")
+                .email("sohyun22@ajou.ac.kr")
+                .phone("01012345678")
+                .joinDate(LocalDate.now())
+                .build();
+
+        memberRepository.save(member);
+
+        Member member1 = memberRepository.findByName("문소현");
+
+        System.out.println("name = " + member1.getEmail());
+    }
+}
\ No newline at end of file