diff --git a/.travis.yml b/.travis.yml
index 51742dc..eff7ef1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,7 +24,7 @@ before_script:
 script:
   - qmake qtpromise.pro CONFIG+=coverage
   - make -j4
-  - make -j4 check --quiet
+  - make check --quiet
   - lcov -capture --directory . --o coverage.info
   - lcov -e coverage.info '**/src/**/*' -o coverage.info
 
diff --git a/LICENSE.md b/LICENSE.md
index e1f86a6..f5e6e9c 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-**The MIT License (MIT)**
+The MIT License (MIT)
 
 Copyright (c) 2017 Simon Brunel
 
diff --git a/README.md b/README.md
index 8b6d92a..b66e271 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,391 @@
 
 [Promises/A+](https://promisesaplus.com/) implementation for [Qt/C++](https://www.qt.io/).
 
-Requires [Qt 5.4](https://www.qt.io/download/) or later.
+Requires [Qt 5.4](https://www.qt.io/download/) (or later) with [C++11 support enabled](https://wiki.qt.io/How_to_use_C++11_in_your_Qt_Projects).
+
+## Getting Started
+### Installation
+QtPromise is a [header-only](https://en.wikipedia.org/wiki/Header-only) library, simply download the [latest release](https://github.com/simonbrunel/qtpromise/releases/latest) (or [`git submodule`](https://git-scm.com/docs/git-submodule])) and include `qtpromise.pri` from your project `.pro`.
+
+### Usage
+The recommended way to use QtPromise is to include the single module header:
+
+```cpp
+#include <QtPromise>
+```
+
+### Example
+Let's first make the code more readable by using the library namespace:
+
+```cpp
+using namespace QtPromise;
+```
+
+This `download` function creates a [promise from callbacks](#qpromise-qpromise) which will be resolved when the network request is finished:
+
+```cpp
+QPromise<QByteArray> download(const QUrl& url)
+{
+    return QPromise<QByteArray>([&](
+        const QPromiseResolve<QByteArray>& resolve,
+        const QPromiseReject<QByteArray>& reject) {
+
+        QNetworkReply* reply = manager->get(QNetworkRequest(url));
+        QObject::connect(reply, &QNetworkReply::finished, [=]() {
+            if (reply->error() == QNetworkReply::NoError) {
+                resolve(reply->readAll());
+            } else {
+                reject(reply->error());
+            }
+
+            reply->deleteLater();
+        });
+    });
+}
+```
+
+The following method `uncompress` data in a separate thread and returns a [promise from QFuture](#qtconcurrent):
+
+```cpp
+QPromise<Entries> uncompress(const QByteArray& data)
+{
+    return qPromise(QtConcurrent::run([](const QByteArray& data) {
+        Entries entries;
+
+        // {...} uncompress data and parse content.
+
+        if (error) {
+            throw MalformedException();
+        }
+
+        return entries;
+    }, data));
+}
+```
+
+It's then easy to chain the whole asynchronous process using promises:
+- initiate the promise chain by downloading a specific URL,
+- [`then`](#qpromise-then) *and only if download succeeded*, uncompress received data,
+- [`then`](#qpromise-then) validate and process the uncompressed entries,
+- [`finally`](#qpromise-finally) perform operations whatever the process succeeded or failed,
+- and hande specific errors using [`fail`](#qpromise-fail).
+
+```cpp
+download(url).then(&uncompress).then([](const Entries& entries) {
+    if (entries.isEmpty()) {
+        throw UpdateException("No entries");
+    }
+    // {...} process entries
+}).finally([]() {
+    // {...} cleanup
+}).fail([](QNetworkReply::NetworkError err) {
+    // {...} handle network error
+}).fail([](const UpdateException& err) {
+    // {...} handle update error
+}).fail([]() {
+    // {...} catch all
+});
+```
+
+## QtConcurrent
+QtPromise integrates with [QtConcurrent](http://doc.qt.io/qt-5/qtconcurrent-index.html) to make easy chaining QFuture with QPromise.
+
+### <a name="qtconcurrent-convert"></a> Convert
+Converting `QFuture<T>` to `QPromise<T>` is done using the [`qPromise`](#helpers-qpromise) helper:
+
+```cpp
+QFuture<int> future = QtConcurrent::run([]() {
+    // {...}
+    return 42;
+});
+
+QPromise<int> promise = qtPromise(future);
+```
+
+or simply:
+
+```cpp
+auto promise = qtPromise(QtConcurrent::run([]() {
+    // {...}
+}));
+```
+
+### Chain
+Returning a `QFuture<T>` in [`then`](#qpromise-then)  or [`fail`](#qpromise-fail) automatically translate to `QPromise<T>`:
+
+```cpp
+QPromise<int> input = ...
+auto output = input.then([](int res) {
+    return QtConcurrent::run([]() {
+        // {...}
+        return QString("42");
+    });
+});
+
+// output type: QPromise<QString>
+output.then([](const QString& res) {
+    // {...}
+});
+```
+
+The `output` promise is resolved when the `QFuture` is [finished](http://doc.qt.io/qt-5/qfuture.html#isFinished).
+
+### Error
+Exceptions thrown from a QtConcurrent thread reject the associated promise with the exception as the reason. Note that if you throw an exception that is not a subclass of `QException`, the promise with be rejected with [`QUnhandledException`](http://doc.qt.io/qt-5/qunhandledexception.html#details) (this restriction only applies to exceptions thrown from a QtConcurrent thread, [read more](http://doc.qt.io/qt-5/qexception.html#details)).
+
+```cpp
+QPromise<int> promise = ...
+promise.then([](int res) {
+    return QtConcurrent::run([]() {
+        // {...}
+
+        if (!success) {
+            throw CustomException();
+        }
+
+        return QString("42");
+    });
+}).fail(const CustomException& err) {
+    // {...}
+});
+```
+
+## QPromise
+### <a name="qpromise-qpromise"></a> `QPromise<T>::QPromise(resolver)`
+Creates a new promise that will be fulfilled or rejected by the given `resolver` lambda:
+
+```cpp
+QPromise<int> promise([](const QPromiseResolve<int>& resolve, const QPromiseReject<int>& reject) {
+    async_method([=](bool success, int result) {
+        if (success) {
+            resolve(result);
+        } else {
+            reject(customException());
+        }
+    });
+});
+```
+
+> **Note:** `QPromise<void>` is specialized to not contain any value, meaning that the `resolve` callback takes no argument.
+
+**C++14**
+
+```cpp
+QPromise<int> promise([](const auto& resolve, const auto& reject) {
+    // {...}
+});
+```
+
+### <a name="qpromise-then"></a> `QPromise<T>::then(onFulfilled, onRejected) -> QPromise<R>`
+See [Promises/A+ `.then`](https://promisesaplus.com/#the-then-method) for details.
+
+```cpp
+QPromise<int> input = ...
+auto output = input.then([](int res) {
+    // called with the 'input' result if fulfilled
+}, [](const ReasonType& reason) {
+    // called with the 'input' reason if rejected
+    // see QPromise<T>::fail for details
+});
+```
+
+> **Note**: `onRejected` handler is optional, `output` will be rejected with the same reason as `input`.
+
+> **Note**: it's recommended to use the [`fail`](#qpromise-fail) shorthand to handle errors.
+
+The type `<R>` of the `output` promise depends on the return type of the `onFulfilled` handler:
+
+```cpp
+QPromise<int> input = {...}
+auto output = input.then([](int res) {
+    return QString::number(res);    // -> QPromise<QString>
+});
+
+// output type: QPromise<QString>
+output.then([](const QString& res) {
+    // {...}
+});
+```
+
+> **Note**: only `onFulfilled` can change the promise type, `onRejected` **must** return the same type as `onFulfilled`. That also means if `onFulfilled` is `nullptr`, `onRejected` must return the same type as the `input` promise.
+
+```cpp
+QPromise<int> input = ...
+auto output = input.then([](int res) {
+    return res + 4;
+}, [](const ReasonType& reason) {
+    return -1;
+});
+```
+
+If `onFulfilled` doesn't return any value, the `output` type is `QPromise<void>`:
+
+```cpp
+QPromise<int> input = ...
+auto output = input.then([](int res) {
+    // {...}
+});
+
+// output type: QPromise<void>
+output.then([]() {
+    // `QPromise<void>` `onFulfilled` handler has no argument
+});
+```
+
+You can also decide to skip the promise result by omitting the handler argument:
+
+```cpp
+QPromise<int> input = {...}
+auto output = input.then([]( /* skip int result */ ) {
+    // {...}
+});
+```
+
+The `output` promise can be *rejected* by throwing an exception in either `onFulfilled` or `onRejected`:
+
+```cpp
+QPromise<int> input = {...}
+auto output = input.then([](int res) {
+    if (res == -1) {
+        throw ReasonType();
+    } else {
+        return res;
+    }
+});
+
+// output.isRejected() is true
+```
+
+If an handler returns a promise (or QFuture), the `output` promise is delayed and will be resolved by the returned promise.
+
+### <a name="qpromise-fail"></a> `QPromise<T>::fail(onRejected) -> QPromise<T>`
+Shorthand to `promise.then(nullptr, onRejected)`, similar to the [`catch` statement](http://en.cppreference.com/w/cpp/language/try_catch):
+
+```cpp
+promise.fail([](const MyException&) {
+    // {...}
+}).fail(const QException&) {
+    // {...}
+}).fail(const std::exception&) {
+    // {...}
+}).fail() {
+    // {...} catch-all
+});
+```
+
+### <a name="qpromise-finally"></a> `QPromise<T>::finally(handler) -> QPromise<T>`
+This `handler` is **always** called, without any argument and whatever the `input` promise state (fulfilled or rejected). The `output` promise has the same type as the `input` one but also the same value or error. The finally `handler` **can not modify the fulfilled value** (the returned value is ignored), however, if `handler` throws, `output` is rejected with the new exception.
+
+```cpp
+auto output = input.finally([]() {
+    // {...}
+});
+```
+
+If `handler` returns a promise (or QFuture), the `output` promise is delayed until the returned promise is resolved and under the same conditions: the delayed value is ignored, the error transmitted to the `output` promise.
+
+### <a name="qpromise-wait"></a> `QPromise<T>::wait() -> QPromise<T>`
+This method holds the execution of the remaining code **without** blocking the event loop of the current thread:
+
+```cpp
+int result = -1;
+QPromise<int> input = qPromise(QtConcurrent::run([]() { return 42; }));
+auto output = input.then([&](int res) {
+    result = res;
+});
+
+// output.isPending() is true && result is -1
+
+output.wait();
+
+// output.isPending() is false && result is 42
+```
+
+### `QPromise<T>::isPending() -> bool`
+Returns `true` if the promise is pending (not fulfilled or rejected), otherwise returns `false`.
+
+### `QPromise<T>::isFulfilled() -> bool`
+Returns `true` if the promise is fulfilled, otherwise returns `false`.
+
+### `QPromise<T>::isRejected() -> bool`
+Returns `true` if the promise is rejected, otherwise returns `false`.
+
+## QPromise (statics)
+### <a name="qpromise-resolve"></a> `[static] QPromise<T>::resolve(value) -> QPromise<T>`
+Creates a `QPromise<T>` that is fulfilled with the given `value` of type `T`:
+
+```cpp
+QPromise<int> compute(const QString& type)
+{
+    if (type == "magic") {
+        return QPromise<int>::resolve(42);
+    }
+
+    return QPromise<int>([](const QPromiseResolve<int>& resolve) {
+        // {...}
+    });
+}
+```
+
+See also: [`qPromise`](#helpers-qpromise)
+
+### <a name="qpromise-reject"></a> `[static] QPromise<T>::reject(reason) -> QPromise<T>`
+Creates a `QPromise<T>` that is rejected with the given `reason` of *whatever type*:
+
+```cpp
+QPromise<int> compute(const QString& type)
+{
+    if (type == "foobar") {
+        return QPromise<int>::reject(QString("Unknown type: %1").arg(type));
+    }
+
+    return QPromise<int>([](const QPromiseResolve<int>& resolve) {
+        // {...}
+    });
+}
+```
+
+### <a name="qpromise-all"></a> `[static] QPromise<T>::all(QVector<QPromise<T>>) -> QPromise<QVector<T>>`
+Returns a `QPromise<QVector<T>>` that fulfills when **all** `promises` of (the same) type `T` have been fulfilled. The `output` value is a vector containing **all** the values of `promises`, in the same order. If any of the given `promises` fail, `output` immediately rejects with the error of the promise that rejected, whether or not the other promises are resolved.
+
+```cpp
+QVector<QPromise<QByteArray> > promises{
+    download(QUrl("http://a...")),
+    download(QUrl("http://b...")),
+    download(QUrl("http://c..."))
+};
+
+auto output = QPromise<QByteArray>::all(promises);
+
+// output type: QPromise<QVector<QByteArray>>
+output.then([](const QVector<QByteArray>& res) {
+    // {...}
+});
+```
+
+See also: [`qPromiseAll`](#helpers-qpromiseall)
+
+## Helpers
+### <a name="helpers-qpromise"></a> `qPromise(T value) -> QPromise<R>`
+Similar to the `QPromise<T>::resolve` static method, creates a promise resolved from a given `value` without the extra typing:
+
+```cpp
+auto promise = qPromise();                // QPromise<void>
+auto promise = qPromise(42);              // QPromise<int>
+auto promise = qPromise(QString("foo"));  // QPromise<QString>
+```
+
+This method also allows to convert `QFuture<T>` to `QPromise<T>` delayed until the `QFuture` is finished ([read more](#qtconcurrent-convert)).
+
+### <a name="helpers-qpromiseall"></a> `qPromiseAll(QVector<QPromise<T> promises) -> QPromise<QVector<T>>`
+This method simply calls the appropriated [`QPromise<T>::all`](#qpromise-all) static method based on the given `QVector` type. In some cases, this method is more convenient than the static one since it avoid some extra typing:
+
+```cpp
+QVector<QPromise<QByteArray> > promises{...}
+
+auto output = qPromiseAll(promises);
+// eq. QPromise<QByteArray>::all(promises)
+```
 
 ## License
 QtPromise is available under the [MIT license](LICENSE.md).