Instructables FREE 6-week Design Sketching course
Sketching is the primary skill of the designer. It's the best way to quickly generate, iterate, and communicate design ideas to yourself and to others. In this class, you'll learn the basics of how to sketch in 2D, 3D, and how to shade a drawing to add realism. Grab some paper, pencils, and your big ideas. Let's get designing!

MIT Engineering Drawing and Sketching
One of the best ways to communicate one's ideas is through some form of picture or drawing. This is especially true for the engineer. The purpose of this guide is to give you the basics of engineering sketching and drawing.
We will treat "sketching" and "drawing" as one. "Sketching" generally means freehand drawing. "Drawing" usually means using drawing instruments, from compasses to computers to bring precision to the drawings.
This is just an introduction. Don't worry about understanding every detail right now - just get a general feel for the language of graphics.


Designing the Perfect Label (opens in new tab/window)
"Why do some product labels seem to jump out at you while others are hardly noticeable? Some characteristics, combined with various psychological factors, can easily determine whether your label catches someone's attention or gets lost in a sea of similar products. Studies have shown that the most successful of all product labels tend to share some very simple, common attributes. Stick with us as we explain what they are and how you can use them to your advantage."

Choosing the Perfect Font for Your Label Design (opens in new tab/window)
"Picking the font that will tell the story of your product is extremely important, and can be much tougher than it sounds. Many people dread this part of making a product and we don't blame them! It's time-consuming to go through every font choice until you find the perfect one. Luckily for you, is here to make the process easier."


Signs - Distance and Legibility

APCO Distance Legibility Chart
Sign Letter Height Visibility Chart
Sign Legibility Rules of Thumb
Visibility Calculator
Viewing Distance and Font Size
Elliott Design Letter Size to Visibility Chart
Dutch Masters Calculation
Proper Sign Distance for Optimal Visibility
Conspicuity and Readability
Banner Letter Sizes