The real world translated into a digital world. Adobe Photoshop. How to capture reality: digital cameras, scanners. How to alter that reality with a digital tool. RGB vs CMYK, resolution, DPI, print size vs. pixel size. Layers, tools, cropping, copying, pasting. Filters. Optimization of files, understanding compression via Saving for Web. PSD Vs TIFF Vs PNG Vs JPG Vs GIF Vs PDF. Particularities of file size, differences and unique features of each format
GIMP Open Source alternative (a bit more complicated but accomplishes pretty much the same basic tasks. Use it only IF you cannot use Photoshop at all.
History of Photoshop /
Color sampler / Retouching / Patch tool / History brush tool / Art History Brush tool / Background Eraser / Magic Eraser / Cutout and refine edges / Panoramics #1 #2 / Puppet Warp Tool / Content Aware Fill / Bristle Tip Brushes / 8 Bit Vs 16 Bit / PS 32 Bits Vs 64 Bits / What is RAM? / Smart Objects / Creating an image stack / Stack Mode / Optimizing your images / Curves / Pen tool + Filling or Stroke / Timeline animation (3D) / New Mesh from Grayscale / Content aware / Clipping Mask or Path /