diff --git a/lib/src/models/ellipse.ts b/lib/src/models/ellipse.ts
new file mode 100644
index 0000000..5324ec3
--- /dev/null
+++ b/lib/src/models/ellipse.ts
@@ -0,0 +1,22 @@
+import { IPoint } from "../interfaces";
+import { Point } from "./point";
+
+export class Ellipse {
+  center = new Point();
+  radiusX = 0;
+  radiusY = 0;
+
+  get width() {
+    return this.radiusX * 2;
+  }
+
+  get height() {
+    return this.radiusY * 2;
+  }
+
+  constructor(center: IPoint, radiusX: number, radiusY: number) {
+    this.center = new Point(center.x, center.y);
+    this.radiusX = radiusX;
+    this.radiusY = radiusY;
+  }
+}
diff --git a/lib/src/models/index.ts b/lib/src/models/index.ts
index 6e5171c..a9c6a7c 100644
--- a/lib/src/models/index.ts
+++ b/lib/src/models/index.ts
@@ -1,3 +1,6 @@
 export * from "./margin";
 export * from "./point";
 export * from "./size";
+export * from "./ellipse";
+export * from "./rectangle";
+export * from "./transform";
diff --git a/lib/src/models/rectangle.ts b/lib/src/models/rectangle.ts
new file mode 100644
index 0000000..8151356
--- /dev/null
+++ b/lib/src/models/rectangle.ts
@@ -0,0 +1,84 @@
+import { Point } from "./point";
+import { Size } from "./size";
+
+export class Rectangle {
+  public x = 0;
+  public y = 0;
+  public width = 0;
+  public height = 0;
+
+  get left() {
+    return this.x;
+  }
+
+  get right() {
+    return this.x + this.width;
+  }
+
+  get top() {
+    return this.y;
+  }
+
+  get bottom() {
+    return this.y + this.height;
+  }
+
+  get center() {
+    return new Point(this.left + this.width / 2, this.top + this.height / 2);
+  }
+
+  get position() {
+    return new Point(this.x, this.y);
+  }
+
+  get size() {
+    return new Size(this.width, this.height);
+  }
+
+  constructor(x = 0, y = 0, width = 0, height = 0) {
+    this.x = x;
+    this.y = y;
+    this.width = width;
+    this.height = height;
+  }
+
+  isEmpty() {
+    return this.width <= 0 || this.height <= 0;
+  }
+
+  containsPoint(point: Point) {
+    return point.x >= this.left && point.x <= this.right && point.y >= this.top && point.y <= this.bottom;
+  }
+
+  containsRectangle() {
+    throw new Error("Not implemented!");
+  }
+
+  copy() {
+    throw new Error("Not implemented!");
+  }
+
+  static fromPoints(left: number, top: number, right: number, bottom: number) {
+    return new Rectangle(left, top, right - left, bottom - top);
+  }
+
+  static union(rectangles: Rectangle[]) {
+    if (rectangles.length === 0) {
+      return new Rectangle(0, 0, 0, 0);
+    }
+    if (rectangles.length === 1) {
+      return rectangles[0];
+    }
+
+    return rectangles.reduce(
+      (prev, current) => {
+        const left = prev.x < current.x ? prev.x : current.x;
+        const top = prev.y < current.y ? prev.y : current.y;
+        const right = prev.right > current.right ? prev.right : current.right;
+        const bottom = prev.bottom > current.bottom ? prev.bottom : current.bottom;
+        return Rectangle.fromPoints(left, top, right, bottom);
+      },
+      new Rectangle(0, 0, 0, 0),
+    );
+  }
+}
diff --git a/lib/src/models/transform.ts b/lib/src/models/transform.ts
new file mode 100644
index 0000000..38a909e
--- /dev/null
+++ b/lib/src/models/transform.ts
@@ -0,0 +1,12 @@
+export class Transform {
+  scaleX = 1;
+  scaleY = 1;
+
+  translateY = 0;
+  translateX = 0;
+
+  skewY = 0;
+  skewX = 0;
+
+  rotate = 0;
+}
diff --git a/lib/src/package.json b/lib/src/package.json
index 50fd85b..d8960e4 100644
--- a/lib/src/package.json
+++ b/lib/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gxc-solutions/math",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "main": "index.js",
   "author": "GXC Solutions",
   "publishConfig": {