GBD Works: Theo Bertz Sketches Book 2/3
Theo Bertz: “Graphite on Paper—Strokes on Canvas 2/3”

“To say that something is designed means it has intentions that go beyond its function. Otherwise it’s just planning.”
Ayse Birsel
![]()
Scroll down to flip through Theo’s complete book
For Theo’s book, I used InDesign’s layers, layer modes and opacity extensively. These work together to give you precise control over document visual hierarchy and layout transparency. Layers act as transparent sheets stacked on top of each other, letting you organize, lock, or hide related elements—like keeping text, images, and background graphics separate—so you can edit one layer without accidentally shifting objects on another. Opacity determines how solid or see-through an individual object, stroke, fill, or entire layer is, allowing lower elements to show through as you lower the percentage from 100% down to 0%. Layer modes—found in the Effects panel—dictate how the colors of an object interact mathematically with the colors directly beneath it. By switching from standard Normal to blend modes like Multiply (which darkens and blends dark tones) or Screen (which lightens), you can create soft shadows, realistic color overlays, and complex visual effects without modifying the original assets.
Using InDesign’s Layers for Page Composition Part 1
Using InDesign’s and Photoshop’s Layers to Build Composites
Below: A completed page from Theo’s book.

Below: Steps in InDesign and Photoshop
Below: Theo’s original sketch then converted to a bitmap in Photoshop then with color applied in InDesign.

Learn more about bitmaps here![]()
Using InDesign’s Layers for Page Composition Part 1
Below: Another completed page from Theo’s book

Below: two of the final images from the page before (Theo’s original sketches) and after (the bitmap images that I placed in InDesign)
Flip Through the Whole book Below
































