You can now add drawing objects like flowcharts, arrows, callouts, banners and even freehand scribbles to your documents in Google Docs using the new "Insert Drawing" command available from the menu bar.
This new feature in Google Docs is like the "Drawing Canvas" of Microsoft Office and, on a closer look, you’ll find that the shapes drop-down in Google Docs is remarkably similar to what you have in Office (see screenshot above). Why re-invent when Microsoft has already determined shapes that are most frequently used in documents.
Other than drawing, Google Docs has added WordArt as well – see the colored "T" symbol inside the Shapes drop-down – but it’s pretty basic at the moment. You can have different typefaces and choose different fill colors for the outline and interiors.
To create a drawing in Google Docs, open a document, presentation, or a spreadsheet, and click Insert > Drawing. Then, select the type of object you’d like to insert from the toolbar.
Also see: Google Docs Guide