The Zeta is the latest addition to Stillman & Birn’s excellent line of sketchbooks. I’ve reviewed the others here, so I won’t go into too much detail about the basics of their construction. The key difference with the new Zeta line is that it offers their heaviest paper in a smooth surface as opposed to … Continue reading Review: Stillman & Birn Zeta Series (and Winsor & Newton Watercolors) →