Jon spent a year in 1973-74 hitchhiking around Europe to see art and architecture in situ, and always carried a small sketchbook with him to record impressions.
gallery of sketches
The habit of carrying a sketchbook has continued on many subsequent museum visits as a means of sharpening observation and recording impressions.
Some drawings anticipate sculptures, either consciously or unconsciously, and are best seen paired with the associated three-dimensional piece
gallery of drawings and sculptures
Sketchbooks that open flat to offer a larger surface area for drawing, either for two related drawings or for single drawings spanning two pages. Here are a few examples.
gallery of two-page spreads