Sketchbooks
2006: Petersen created a Mouse Guard Sketchbook that was self-distributed, both through his website and at conventions. Each copy had a unique sketch by Petersen drawn on the inside of the front cover.
2007: A second sketchbook was released in July 2007, which debuted at the San Diego Comic-Con. This release was 40 pages, black and white, with a mix of pencil sketches, inked convention drawings, and new character profiles. Production was strictly limited to 333 numbered copies.
2008: A third sketchbook was released in July 2008, available at the San Diego Comic-Con. This was a 24 page release in full color, utilizing a hand selected pick of commissioned sketches drawn at conventions for fans. Production was limited to 300 numbered copies.
2009: Like the 2008 Sketchbook, this was also a full color 24 page publication of handpicked commissions. Its debut was the San Diego Comic Con in 2009. Production was limited to 300 copies.
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