diff --git a/local.properties b/local.properties
new file mode 100644
index 0000000..5771c86
--- /dev/null
+++ b/local.properties
@@ -0,0 +1,8 @@
+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Thu Aug 11 16:45:35 KST 2022
+sdk.dir=/Users/leeseungcheol/Library/Android/sdk
diff --git a/summer_coding_android/app/build.gradle b/summer_coding_android/app/build.gradle
index b107e81..6e1e9c3 100644
--- a/summer_coding_android/app/build.gradle
+++ b/summer_coding_android/app/build.gradle
@@ -40,7 +40,14 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.4.2'
     implementation 'com.google.android.material:material:1.6.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation 'com.squareup.retrofit2:retrofit:2.9.0'
+    implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
+    implementation 'com.github.bumptech.glide:glide:4.13.2'
+
+
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+
 }
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/AndroidManifest.xml b/summer_coding_android/app/src/main/AndroidManifest.xml
index 46b301c..cc256d3 100644
--- a/summer_coding_android/app/src/main/AndroidManifest.xml
+++ b/summer_coding_android/app/src/main/AndroidManifest.xml
@@ -1,7 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
+
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="kr.co.landvibe.summer_coding_android">
 
+    <!-- 승철 -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
diff --git a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/Leesc0893Activity.kt b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/Leesc0893Activity.kt
index aaae583..f3155cf 100644
--- a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/Leesc0893Activity.kt
+++ b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/Leesc0893Activity.kt
@@ -2,11 +2,71 @@ package kr.co.landvibe.summer_coding_android.leesc0893
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.util.Log
+import android.widget.LinearLayout
+import android.widget.Toast
+import androidx.recyclerview.widget.LinearLayoutManager
+import com.google.android.material.snackbar.Snackbar
 import kr.co.landvibe.summer_coding_android.R
+import kr.co.landvibe.summer_coding_android.databinding.ActivityLeesc0893Binding
+import kr.co.landvibe.summer_coding_android.leesc0893.adapter.BookAdapter
+import kr.co.landvibe.summer_coding_android.leesc0893.api.BookService
+import kr.co.landvibe.summer_coding_android.leesc0893.model.BestSellerDto
+import retrofit2.*
+import retrofit2.converter.gson.GsonConverterFactory
 
 class Leesc0893Activity : AppCompatActivity() {
+    private lateinit var binding: ActivityLeesc0893Binding
+    private lateinit var adapter: BookAdapter
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_leesc0893)
+        binding = ActivityLeesc0893Binding.inflate(layoutInflater)
+        setContentView(binding.root)
+        initRecyclerView()
+
+
+
+        val retrofit = Retrofit.Builder()
+            .baseUrl("https://book.interpark.com") // http 는 x , https 는 허용
+            .addConverterFactory(GsonConverterFactory.create())
+            .build()
+
+        val bookService = retrofit.create(BookService::class.java)
+
+        bookService.getBestSellerBooks("2513DC43FA0D012F7E9EF24437004EC8AAFD621E944D018691E66C2874B46AF0")
+            .enqueue(object : Callback<BestSellerDto> {
+                override fun onResponse( // 성공
+                    call: Call<BestSellerDto>,
+                    response: Response<BestSellerDto>
+                ) {
+                    if (response.isSuccessful.not()) {
+                        Log.d(TAG, "response.isSuccessful.not()")
+                        return
+                    }
+                    response.body()?.let { BestSellerDto ->
+                        Log.d(TAG, BestSellerDto.toString())
+                        BestSellerDto.books.forEach { book ->
+                            Log.d(TAG, book.toString())
+                        }
+                        adapter.submitList(BestSellerDto.books)
+                    }
+                }
+
+                override fun onFailure(call: Call<BestSellerDto>, t: Throwable) { // 실패
+                    Log.d(TAG, t.toString())
+                }
+
+            })
+        /*  bookService.getBooksByName()*/
+    }
+
+    private fun initRecyclerView(){
+        adapter = BookAdapter()
+        binding.mainRecyclerView.layoutManager = LinearLayoutManager(this)
+        binding.mainRecyclerView.adapter = adapter
+    }
+
+    companion object {
+        private const val TAG: String = "Leesc0893Activity"
     }
 }
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/adapter/BookAdapter.kt b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/adapter/BookAdapter.kt
new file mode 100644
index 0000000..4bd022b
--- /dev/null
+++ b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/adapter/BookAdapter.kt
@@ -0,0 +1,52 @@
+package kr.co.landvibe.summer_coding_android.leesc0893.adapter
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
+import androidx.recyclerview.widget.RecyclerView
+import com.bumptech.glide.Glide
+import kr.co.landvibe.summer_coding_android.databinding.ItemBookBinding
+import kr.co.landvibe.summer_coding_android.leesc0893.model.Book
+
+
+class BookAdapter : ListAdapter<Book, BookAdapter.BookItemViewHolder>(diffUtil) {
+    inner class BookItemViewHolder(private val binding: ItemBookBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        fun bind(bookModel: Book) {
+            binding.titleTextView.text = bookModel.title
+            binding.contentTextView.text = bookModel.description
+            Glide.with(binding.bookImageView.context).load(bookModel.coverSmallUrl)
+                .into(binding.bookImageView)
+        }
+
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BookItemViewHolder {
+        return BookItemViewHolder(
+            ItemBookBinding.inflate(
+                LayoutInflater.from(parent.context),
+                parent,
+                false
+            )
+        )
+    }
+
+    override fun onBindViewHolder(holder: BookItemViewHolder, position: Int) {
+        holder.bind(currentList[position])
+    }
+
+    companion object {
+        val diffUtil = object : DiffUtil.ItemCallback<Book>() {
+            override fun areItemsTheSame(oldItem: Book, newItem: Book): Boolean {
+                return oldItem == newItem
+            }
+
+            override fun areContentsTheSame(oldItem: Book, newItem: Book): Boolean {
+                return oldItem.id == newItem.id
+            }
+
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/api/BookService.kt b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/api/BookService.kt
new file mode 100644
index 0000000..39320a2
--- /dev/null
+++ b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/api/BookService.kt
@@ -0,0 +1,21 @@
+package kr.co.landvibe.summer_coding_android.leesc0893.api
+
+import kr.co.landvibe.summer_coding_android.leesc0893.model.BestSellerDto
+import kr.co.landvibe.summer_coding_android.leesc0893.model.SearchBookDto
+import retrofit2.Call
+import retrofit2.http.GET
+import retrofit2.http.Query
+
+interface BookService {
+
+    @GET("/api/search.api?output=json") // json 으로 받아오는 것 고정
+    fun getBooksByName(
+        @Query("key") apiKey: String,
+        @Query("query") keyword: String,
+    ):Call<SearchBookDto>
+
+    @GET("/api/bestSeller.api?output=json&categoryId=100") // json 으로 받아오는 것 고정
+    fun getBestSellerBooks(
+        @Query("key") apiKey: String,
+    ):Call<BestSellerDto>
+}
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/BestSellerDto.kt b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/BestSellerDto.kt
new file mode 100644
index 0000000..1a1f163
--- /dev/null
+++ b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/BestSellerDto.kt
@@ -0,0 +1,9 @@
+package kr.co.landvibe.summer_coding_android.leesc0893.model
+
+import com.google.gson.annotations.SerializedName
+
+data class BestSellerDto( // 이게 데이터를 한번에 가져오고 "Book" data class 의 정보들을 mapping 된 상태로 저장
+    @SerializedName("title") val title: String,
+    @SerializedName("item") val books: List<Book>
+
+)
diff --git a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/Book.kt b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/Book.kt
new file mode 100644
index 0000000..e2015ea
--- /dev/null
+++ b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/Book.kt
@@ -0,0 +1,10 @@
+package kr.co.landvibe.summer_coding_android.leesc0893.model
+
+import com.google.gson.annotations.SerializedName
+
+data class Book(
+    @SerializedName("itemId") val id : Long,
+    @SerializedName("title") val title : String,
+    @SerializedName("description") val description : String,
+    @SerializedName("coverSmallUrl") val coverSmallUrl : String
+)
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/SearchBookDto.kt b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/SearchBookDto.kt
new file mode 100644
index 0000000..e2e096f
--- /dev/null
+++ b/summer_coding_android/app/src/main/java/kr/co/landvibe/summer_coding_android/leesc0893/model/SearchBookDto.kt
@@ -0,0 +1,8 @@
+package kr.co.landvibe.summer_coding_android.leesc0893.model
+
+import com.google.gson.annotations.SerializedName
+
+data class SearchBookDto(
+    @SerializedName("title") val title: String,
+    @SerializedName("item") val books: List<Book>
+)
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/res/font/bmhannaprooft.otf b/summer_coding_android/app/src/main/res/font/bmhannaprooft.otf
new file mode 100644
index 0000000..372cf07
Binary files /dev/null and b/summer_coding_android/app/src/main/res/font/bmhannaprooft.otf differ
diff --git a/summer_coding_android/app/src/main/res/layout/activity_leesc0893.xml b/summer_coding_android/app/src/main/res/layout/activity_leesc0893.xml
index 8b46911..53e6633 100644
--- a/summer_coding_android/app/src/main/res/layout/activity_leesc0893.xml
+++ b/summer_coding_android/app/src/main/res/layout/activity_leesc0893.xml
@@ -6,4 +6,21 @@
     android:layout_height="match_parent"
     tools:context=".leesc0893.Leesc0893Activity">
 
+    <EditText
+        android:id="@+id/searchEditText"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/mainRecyclerView"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/searchEditText" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/summer_coding_android/app/src/main/res/layout/item_book.xml b/summer_coding_android/app/src/main/res/layout/item_book.xml
new file mode 100644
index 0000000..cb6788b
--- /dev/null
+++ b/summer_coding_android/app/src/main/res/layout/item_book.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="16dp">
+
+    <androidx.appcompat.widget.AppCompatImageView
+        android:id="@+id/bookImageView"
+        android:layout_width="100dp"
+        android:layout_height="100dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:background="@color/black" />
+
+    <TextView
+        android:id="@+id/titleTextView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="12dp"
+        android:ellipsize="end"
+        android:fontFamily="@font/bmhannaprooft"
+        android:lines="1"
+        android:textColor="@color/black"
+        android:textSize="16sp"
+        android:textStyle="bold"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toEndOf="@+id/bookImageView"
+        app:layout_constraintTop_toTopOf="parent"
+        tools:text="제목 예시" />
+
+    <TextView
+        android:id="@+id/contentTextView"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:layout_marginTop="12dp"
+        android:ellipsize="end"
+        android:fontFamily="@font/bmhannaprooft"
+        android:lines="1"
+        android:maxLines="3"
+        android:textSize="12sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="@+id/titleTextView"
+        app:layout_constraintStart_toStartOf="@+id/titleTextView"
+        app:layout_constraintTop_toBottomOf="@+id/titleTextView"
+        tools:text="내용 예시" />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file