EPSILON SERIES - SOFTCOVER SKETCHBOOKS Stillman & Birn Epsilon Series Softcover Sketchbooks, 150 gsm (Heavyweight), white paper, smooth surface. Suitable for pen & ink, dry media. Example of recommended usage: fine line artwork and technical drawing with ink wash. Softcover bindings are flexible and lightweight and open totally flat. Acid-free, chloride-free, lignin-free.

• HEAVYWEIGHT PAPER: Strong enough to use wet media on both sides of page. Great for fine line artwork and technical drawing with ink wash.
• CRAFTED FOR MIXED MEDIA: Double-sized (from non-animal materials) for enhanced wet strength and glowing color.
• ERASABLE & TOUGH: Withstands multiple erasures and holds up well to layered light washes of wet media.
• DURABLE: Premium U.S. sewn binding, deluxe covers and heavy-duty art paper equals a sketchbook that is built for serious use.
• LOVES INK: Holds ink line with precision without feathering or bleeding. Ink & ink wash, stippling, cross-hatching, etc.