diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6937348..d1c4f26 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## [0.1.1](https://github.com/sushichop/Puppy/releases/tag/0.1.1) (2020-10-20)
+
+- Fix access level issue for use as a library. #4
+
 ## [0.1.0](https://github.com/sushichop/Puppy/releases/tag/0.1.0) (2020-10-18)
 
-- First release
+- First release.
diff --git a/Configurations/Common.xcconfig b/Configurations/Common.xcconfig
index 7ff74c4..f465404 100644
--- a/Configurations/Common.xcconfig
+++ b/Configurations/Common.xcconfig
@@ -19,7 +19,7 @@ WATCHOS_DEPLOYMENT_TARGET = 3.0
 
 SWIFT_VERSION = 5.0
 
-MARKETING_VERSION = 0.1.0
+MARKETING_VERSION = 0.1.1
 DYLIB_CURRENT_VERSION = 1
 CURRENT_PROJECT_VERSION = $(DYLIB_CURRENT_VERSION)
 
diff --git a/Puppy.podspec b/Puppy.podspec
index 59ad225..096216b 100644
--- a/Puppy.podspec
+++ b/Puppy.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name              = "Puppy"
-  s.version           = "0.1.0"
+  s.version           = "0.1.1"
   s.summary           = "A flexible logging library written in Swift"
   s.homepage          = "https://github.com/sushichop/Puppy"
   s.license           = { :type => "MIT", :file => "LICENSE" }
diff --git a/README.md b/README.md
index b0b6c96..7112d9a 100644
--- a/README.md
+++ b/README.md
@@ -24,14 +24,16 @@
 
 ## Examples
 
-**Logging to console and file using file log rotation feature.**
+**Logging to console and file, then use log rotation feature about file.**
 
 You can basically use CocoaPods, Carthage, and Swift Package Manager for integration.
 
 ```swift
+import Puppy
+
 let console = ConsoleLogger("com.example.yourapp.consolelogger")
 let fileURL = URL(fileURLWithPath: "./rotation/foo.log").absoluteURL
-let fileRotation = try FileRotationLogger("com.example.yourapp.filerotationlogger",
+let fileRotation = try! FileRotationLogger("com.example.yourapp.filerotationlogger",
                                           fileURL: fileURL)
 
 fileRotation.maxFileSize = 10 * 1024 * 1024
@@ -51,6 +53,9 @@ You can use CocoaPods and Swift Package Manager for integration.
 (`apple/swift-log` does not support Carthage integration.)
 
 ```swift
+import Puppy
+import Logging
+
 let console = SystemLogger("com.example.yourapp.consolelogger")
 let syslog = SystemLogger("com.example.yourapp.systemlogger")
 
diff --git a/Sources/Puppy/BaseLogger.swift b/Sources/Puppy/BaseLogger.swift
index b70958a..18949ea 100644
--- a/Sources/Puppy/BaseLogger.swift
+++ b/Sources/Puppy/BaseLogger.swift
@@ -43,7 +43,7 @@ public class BaseLogger: Loggerable {
     public var label: String
     public var queue: DispatchQueue? { return nil }
 
-    init(_ label: String) {
+    public init(_ label: String) {
         self.label = label
     }
 
diff --git a/Sources/Puppy/FileLogger.swift b/Sources/Puppy/FileLogger.swift
index 355c3cf..d320427 100644
--- a/Sources/Puppy/FileLogger.swift
+++ b/Sources/Puppy/FileLogger.swift
@@ -13,7 +13,7 @@ public class FileLogger: BaseLogger {
     private var fileHandle: FileHandle!
     private let fileURL: URL
 
-    init(_ label: String, fileURL: URL) throws {
+    public init(_ label: String, fileURL: URL) throws {
         self.fileURL = fileURL
         debug("fileURL is \(fileURL)")
         super.init(label)
diff --git a/Sources/Puppy/FileRotationLogger.swift b/Sources/Puppy/FileRotationLogger.swift
index b083f2a..40fff9a 100644
--- a/Sources/Puppy/FileRotationLogger.swift
+++ b/Sources/Puppy/FileRotationLogger.swift
@@ -17,7 +17,7 @@ public class FileRotationLogger: BaseLogger {
 
     public weak var delegate: FileRotationLoggerDeletate?
 
-    init(_ label: String, fileURL: URL) throws {
+    public init(_ label: String, fileURL: URL) throws {
         self.fileURL = fileURL
         debug("fileURL is \(fileURL)")
         super.init(label)
diff --git a/Sources/Puppy/Formatter.swift b/Sources/Puppy/Formatter.swift
index 7757602..7d66251 100644
--- a/Sources/Puppy/Formatter.swift
+++ b/Sources/Puppy/Formatter.swift
@@ -5,12 +5,12 @@ public protocol LogFormattable {
 }
 
 extension LogFormattable {
-    func shortFileName(_ file: String) -> String {
+    public func shortFileName(_ file: String) -> String {
         return URL(fileURLWithPath: file).lastPathComponent
     }
 }
 
-func dateFormatter(_ date: Date, locale: String = "en_US_POSIX", dateFormat: String = "yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ", timeZone: String = "") -> String {
+public func dateFormatter(_ date: Date, locale: String = "en_US_POSIX", dateFormat: String = "yyyy-MM-dd'T'HH:mm:ss.SSSZZZZZ", timeZone: String = "") -> String {
     let dateFormatter = DateFormatter()
     dateFormatter.locale = Locale(identifier: locale)
     dateFormatter.dateFormat = dateFormat
diff --git a/Sources/Puppy/LogLevel.swift b/Sources/Puppy/LogLevel.swift
index e5386d2..ea38f06 100644
--- a/Sources/Puppy/LogLevel.swift
+++ b/Sources/Puppy/LogLevel.swift
@@ -35,7 +35,7 @@ extension LogLevel: CustomStringConvertible {
 }
 
 extension LogLevel {
-    var emoji: String {
+    public var emoji: String {
         switch self {
         case .trace:
             return "🟤"
@@ -56,7 +56,7 @@ extension LogLevel {
         }
     }
 
-    var color: LogColor {
+    public var color: LogColor {
         switch self {
         case .trace:
             return .darkGray
diff --git a/Sources/Puppy/OSLogger.swift b/Sources/Puppy/OSLogger.swift
index 9e31d7c..46493a1 100644
--- a/Sources/Puppy/OSLogger.swift
+++ b/Sources/Puppy/OSLogger.swift
@@ -13,7 +13,7 @@ public class OSLogger: BaseLogger {
 
     private let osLog: OSLog
 
-    init(_ label: String, category: String = "Puppy") {
+    public init(_ label: String, category: String = "Puppy") {
         self.osLog = OSLog(subsystem: label, category: category)
         super.init(label)
     }
diff --git a/Sources/Puppy/Puppy.swift b/Sources/Puppy/Puppy.swift
index c8bccc0..3785208 100644
--- a/Sources/Puppy/Puppy.swift
+++ b/Sources/Puppy/Puppy.swift
@@ -12,6 +12,8 @@ public class Puppy {
 
     public private(set) var loggers = Set<BaseLogger>()
 
+    public init() {}
+
     public func add(_ logger: BaseLogger) {
         if !(loggers.contains(logger)) {
             loggers.insert(logger)
diff --git a/Sources/Puppy/PuppyLogHandler.swift b/Sources/Puppy/PuppyLogHandler.swift
index 4bb266d..51e5a64 100644
--- a/Sources/Puppy/PuppyLogHandler.swift
+++ b/Sources/Puppy/PuppyLogHandler.swift
@@ -19,7 +19,7 @@ public struct PuppyLogHandler: LogHandler {
     private let label: String
     private let puppy: Puppy
 
-    init(label: String, puppy: Puppy, metadata: Logger.Metadata = [:]) {
+    public init(label: String, puppy: Puppy, metadata: Logger.Metadata = [:]) {
         self.label = label
         self.puppy = puppy
         self.metadata = metadata