ALPHA SERIES SOFTCOVER SKETCHBOOKS Stillman & Birn Alpha Series Softcover Sketchbooks, 150 gsm (Heavyweight), white paper, medium grain surface. Suitable for dry media, light wash and ink. Softcover bindings are flexible and lightweight and open totally flat. Example of recommended usage: working in pencil or ink mixed with watercolor. Acid-free, chloride-free, lignin-free.

• HEAVYWEIGHT PAPER: Strong enough to use wet media on both sides of page. Great for artists combining dry media mixed with watercolor.
• 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.
• PREMIUM QUALITY: Exceptional features make Stillman & Birn the popular sketchbook choice, cherished by artists of all levels.