diff --git a/README.md b/README.md
index 2d9f8143..3b3afba4 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Very fast, header only, C++ logging library. [![Build Status](https://travis-ci.
 ## Features
 * Very fast - performance is the primary goal (see [benchmarks](#benchmarks) below).
 * Headers only, just copy and use.
-* Feature rich [call style](#usage-example) using the excellent [fmt](https://github.com/fmtlib/fmt) library.
+* Feature rich using the excellent [fmt](https://github.com/fmtlib/fmt) library.
 * Fast asynchronous mode (optional)
 * [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
 * Conditional Logging
diff --git a/include/spdlog/async.h b/include/spdlog/async.h
index b67c3329..9c3e9551 100644
--- a/include/spdlog/async.h
+++ b/include/spdlog/async.h
@@ -42,7 +42,7 @@ struct async_factory_impl
         auto &registry_inst = details::registry::instance();
 
         // create global thread pool if not already exists..
-        std::lock_guard<std::recursive_mutex> lock(registry_inst.tp_mutex());
+        std::lock_guard<std::recursive_mutex> tp_lock(registry_inst.tp_mutex());
         auto tp = registry_inst.get_tp();
         if (tp == nullptr)
         {
diff --git a/include/spdlog/async_logger.h b/include/spdlog/async_logger.h
index 2d58f98b..3250f4ad 100644
--- a/include/spdlog/async_logger.h
+++ b/include/spdlog/async_logger.h
@@ -49,7 +49,7 @@ public:
     async_logger(std::string logger_name, const It &begin, const It &end, std::weak_ptr<details::thread_pool> tp,
         async_overflow_policy overflow_policy = async_overflow_policy::block);
 
-    async_logger(std::string logger_name, sinks_init_list sinks, std::weak_ptr<details::thread_pool> tp,
+    async_logger(std::string logger_name, sinks_init_list sinks_list, std::weak_ptr<details::thread_pool> tp,
         async_overflow_policy overflow_policy = async_overflow_policy::block);
 
     async_logger(std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp,
diff --git a/include/spdlog/common.h b/include/spdlog/common.h
index b8d45175..ddb0d28c 100644
--- a/include/spdlog/common.h
+++ b/include/spdlog/common.h
@@ -138,8 +138,8 @@ public:
         : runtime_error(msg)
     {
     }
-    spdlog_ex(std::string msg, int last_errno)
-        : runtime_error(std::move(msg))
+    spdlog_ex(const std::string &msg, int last_errno)
+        : runtime_error(msg)
         , last_errno_(last_errno)
     {
     }
diff --git a/include/spdlog/details/async_logger_impl.h b/include/spdlog/details/async_logger_impl.h
index a42ade94..47659ddc 100644
--- a/include/spdlog/details/async_logger_impl.h
+++ b/include/spdlog/details/async_logger_impl.h
@@ -47,7 +47,7 @@ inline void spdlog::async_logger::sink_it_(details::log_msg &msg)
     }
     else
     {
-        throw spdlog_ex("async log: thread pool doens't exist anymore");
+        throw spdlog_ex("async log: thread pool doesn't exist anymore");
     }
 }
 
diff --git a/include/spdlog/details/console_globals.h b/include/spdlog/details/console_globals.h
index 52de06a5..4ac7f743 100644
--- a/include/spdlog/details/console_globals.h
+++ b/include/spdlog/details/console_globals.h
@@ -5,14 +5,14 @@
 //
 
 #include "spdlog/details/null_mutex.h"
-#include "stdio.h"
+#include <cstdio>
 #include <mutex>
 
 namespace spdlog {
 namespace details {
 struct console_stdout
 {
-    static FILE *stream()
+    static std::FILE *stream()
     {
         return stdout;
     }
@@ -26,7 +26,7 @@ struct console_stdout
 
 struct console_stderr
 {
-    static FILE *stream()
+    static std::FILE *stream()
     {
         return stderr;
     }
diff --git a/include/spdlog/details/pattern_formatter.h b/include/spdlog/details/pattern_formatter.h
index 855ea0d8..dd352ae5 100644
--- a/include/spdlog/details/pattern_formatter.h
+++ b/include/spdlog/details/pattern_formatter.h
@@ -69,7 +69,7 @@ static const char *ampm(const tm &t)
     return t.tm_hour >= 12 ? "PM" : "AM";
 }
 
-static unsigned int to12h(const tm &t)
+static int to12h(const tm &t)
 {
     return t.tm_hour > 12 ? t.tm_hour - 12 : t.tm_hour;
 }
@@ -242,7 +242,7 @@ class f_formatter SPDLOG_FINAL : public flag_formatter
     void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
     {
         auto micros = fmt_helper::time_fraction<std::chrono::microseconds>(msg.time);
-        fmt_helper::pad6(static_cast<int>(micros.count()), dest);
+        fmt_helper::pad6(static_cast<size_t>(micros.count()), dest);
     }
 };
 
@@ -745,7 +745,6 @@ private:
                 {
                     formatters_.push_back(std::move(user_chars));
                 }
-                // if(
                 if (++it != end)
                 {
                     handle_flag_(*it);
diff --git a/include/spdlog/details/periodic_worker.h b/include/spdlog/details/periodic_worker.h
index acc13117..57e5fa77 100644
--- a/include/spdlog/details/periodic_worker.h
+++ b/include/spdlog/details/periodic_worker.h
@@ -23,7 +23,7 @@ namespace details {
 class periodic_worker
 {
 public:
-    periodic_worker(std::function<void()> callback_fun, std::chrono::seconds interval)
+    periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval)
     {
         active_ = (interval > std::chrono::seconds::zero());
         if (!active_)
diff --git a/include/spdlog/details/registry.h b/include/spdlog/details/registry.h
index b3db19a2..adbfd16d 100644
--- a/include/spdlog/details/registry.h
+++ b/include/spdlog/details/registry.h
@@ -35,7 +35,7 @@ public:
         std::lock_guard<std::mutex> lock(logger_map_mutex_);
         auto logger_name = new_logger->name();
         throw_if_exists_(logger_name);
-        loggers_[logger_name] = new_logger;
+        loggers_[logger_name] = std::move(new_logger);
     }
 
     void register_and_init(std::shared_ptr<logger> new_logger)
@@ -56,7 +56,7 @@ public:
         new_logger->flush_on(flush_level_);
 
         // add to registry
-        loggers_[logger_name] = new_logger;
+        loggers_[logger_name] = std::move(new_logger);
     }
 
     std::shared_ptr<logger> get(const std::string &logger_name)
@@ -126,7 +126,7 @@ public:
         err_handler_ = handler;
     }
 
-    void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
+    void apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun)
     {
         std::lock_guard<std::mutex> lock(logger_map_mutex_);
         for (auto &l : loggers_)
@@ -189,11 +189,7 @@ private:
     {
     }
 
-    ~registry()
-    {
-        /*std::lock_guard<std::mutex> lock(flusher_mutex_);
-        periodic_flusher_.reset();*/
-    }
+    ~registry() = default;
 
     void throw_if_exists_(const std::string &logger_name)
     {
diff --git a/include/spdlog/details/thread_pool.h b/include/spdlog/details/thread_pool.h
index 36c056a6..b45b6d2b 100644
--- a/include/spdlog/details/thread_pool.h
+++ b/include/spdlog/details/thread_pool.h
@@ -122,7 +122,7 @@ public:
         }
         for (size_t i = 0; i < threads_n; i++)
         {
-            threads_.emplace_back(std::bind(&thread_pool::worker_loop_, this));
+            threads_.emplace_back(&thread_pool::worker_loop_, this);
         }
     }
 
diff --git a/include/spdlog/sinks/base_sink.h b/include/spdlog/sinks/base_sink.h
index 5a3821bc..43863eae 100644
--- a/include/spdlog/sinks/base_sink.h
+++ b/include/spdlog/sinks/base_sink.h
@@ -30,7 +30,7 @@ public:
     base_sink(const base_sink &) = delete;
     base_sink &operator=(const base_sink &) = delete;
 
-    void log(const details::log_msg &msg) SPDLOG_FINAL override
+    void log(const details::log_msg &msg) SPDLOG_FINAL
     {
         std::lock_guard<Mutex> lock(mutex_);
         sink_it_(msg);
diff --git a/include/spdlog/sinks/sink.h b/include/spdlog/sinks/sink.h
index 288d5438..cb8aecb4 100644
--- a/include/spdlog/sinks/sink.h
+++ b/include/spdlog/sinks/sink.h
@@ -20,7 +20,7 @@ public:
     {
     }
 
-    sink(std::unique_ptr<spdlog::pattern_formatter> formatter)
+    explicit sink(std::unique_ptr<spdlog::pattern_formatter> formatter)
         : level_(level::trace)
         , formatter_(std::move(formatter)){};
 
diff --git a/include/spdlog/sinks/stdout_sinks.h b/include/spdlog/sinks/stdout_sinks.h
index 64c0ab70..e12739c1 100644
--- a/include/spdlog/sinks/stdout_sinks.h
+++ b/include/spdlog/sinks/stdout_sinks.h
@@ -19,7 +19,7 @@ namespace spdlog {
 namespace sinks {
 
 template<typename TargetStream, typename ConsoleMutex>
-class stdout_sink : public sink
+class stdout_sink SPDLOG_FINAL : public sink
 {
 public:
     using mutex_t = typename ConsoleMutex::mutex_t;
@@ -28,7 +28,7 @@ public:
         , file_(TargetStream::stream())
     {
     }
-    ~stdout_sink() = default;
+    ~stdout_sink() override = default;
 
     stdout_sink(const stdout_sink &other) = delete;
     stdout_sink &operator=(const stdout_sink &other) = delete;
@@ -48,13 +48,13 @@ public:
         fflush(file_);
     }
 
-    void set_pattern(const std::string &pattern) override SPDLOG_FINAL
+    void set_pattern(const std::string &pattern) override
     {
         std::lock_guard<mutex_t> lock(mutex_);
         formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
     }
 
-    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override SPDLOG_FINAL
+    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override
     {
         std::lock_guard<mutex_t> lock(mutex_);
         formatter_ = std::move(sink_formatter);
diff --git a/include/spdlog/sinks/syslog_sink.h b/include/spdlog/sinks/syslog_sink.h
index e171bf9a..151e7a11 100644
--- a/include/spdlog/sinks/syslog_sink.h
+++ b/include/spdlog/sinks/syslog_sink.h
@@ -24,8 +24,8 @@ class syslog_sink : public base_sink<Mutex>
 {
 public:
     //
-    syslog_sink(const std::string &ident = "", int syslog_option = 0, int syslog_facility = LOG_USER)
-        : ident_(ident)
+    explicit syslog_sink(std::string ident = "", int syslog_option = 0, int syslog_facility = LOG_USER)
+        : ident_(std::move(ident))
     {
         priorities_[static_cast<size_t>(level::trace)] = LOG_DEBUG;
         priorities_[static_cast<size_t>(level::debug)] = LOG_DEBUG;
diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index 2963a2a0..40640ab9 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -64,7 +64,7 @@ inline void set_formatter(std::unique_ptr<spdlog::formatter> formatter)
 // example: spdlog::set_pattern("%Y-%m-%d %H:%M:%S.%e %l : %v");
 inline void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local)
 {
-    set_formatter(std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern, time_type)));
+    set_formatter(std::unique_ptr<spdlog::formatter>(new pattern_formatter(std::move(pattern), time_type)));
 }
 
 // Set global logging level
@@ -101,9 +101,9 @@ inline void register_logger(std::shared_ptr<logger> logger)
 // Apply a user defined function on all registered loggers
 // Example:
 // spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) {l->flush();});
-inline void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
+inline void apply_all(const std::function<void(std::shared_ptr<logger>)> &fun)
 {
-    details::registry::instance().apply_all(std::move(fun));
+    details::registry::instance().apply_all(fun);
 }
 
 // Drop the reference to the given logger
diff --git a/tests/file_log.cpp b/tests/file_log.cpp
index 9ddaae83..6a4d7aee 100644
--- a/tests/file_log.cpp
+++ b/tests/file_log.cpp
@@ -33,7 +33,7 @@ TEST_CASE("flush_on", "[flush_on]]")
 
     logger->info("Test message {}", 1);
     logger->info("Test message {}", 2);
-    
+
     REQUIRE(file_contents(filename) == std::string("Should not be flushed\nTest message 1\nTest message 2\n"));
     REQUIRE(count_lines(filename) == 3);
 }