Read more about it in the Naming tutorial. Only the Italic instance is the Italic of Regular, and the Bold Italic is the Bold and Italic of Regular. And every italic is the Italic of its upright counterpart, e.g., Semibold Italic is the Italic of Semibold. In the uprights, you leave these usually blank, only the Bold is the Bold of the Regular. Read more about the distribution of weights in the Multiple Masters, part 3 tutorial.

Pick appropriate design space coordinates for each of your axes.

The downside: this will only apply to the correlating static font exports, and not be written into the variable font.

Optional: you can pick a Weight and Width Class from the pop-up menu right below the Name.

Set an appropriate Style Name: e.g., Light, Regular, Medium, Semibold, Bold, Extrabold in our example.

I draw the light A (Cmd-1) with a stem width of approximately 50 units: To keep it short and simple, we will stick to an uppercase A for this tutorial. Okay, now we have the masters set up, we can add drawings in each master. Again, this is only for your orientation, so pick something that makes sense to you. You can also enter a glyph name at the bottom, and Glyphs will use an image of the respective glyph as master icon. You can select from a range of lowercase nвЂ™s representing all sorts of weight and width combinations. Optionally, pick a master icon from the Icon pop-up in the General section of each master. They are important for your own orientation when you work in Glyphs. The master names are not exported into the final font file. In our case, I would say Light and Bold are good guesses. Make sure you pick an appropriate master name for each master. In our example, we could calculate an instance at numbers between 50 and 200, e.g., 75, 120, 182, etc.

Many designers like to use the stem thickness as value for the weight axis value, but you can enter whatever you like, as long as the values are sufficiently different, so that Glyphs can calculate intermediate instances. In our example, set the Weight value, e.g., 50 for the Light Master, and 200 for the Bold Master. Most importantly, set the axes coordinates for each master.

How to see font glyphs