No traditional Japanese home is complete without items that incorporate paper, including doors and sliding screens. Japanese papermaking technology continues to advance in the form of high-tech tissues and even "paper" that is stronger than steel. This time on Japanology Plus, our theme is paper. Our expert guest is Naohiko Tsujimoto, who spent 25 years at a papermaking company before devoting himself to spreading awareness of Japan's paper culture. And in Plus One, how to repaper a shoji screen.

Katsuobushi: hard blocks of smoked skipjack tuna that are shaved to make flakes which add goodness to soup stock. A method of smoking skipjack was developed centuries ago, and the same basic technique is still used. Our expert guest, Norinaga Oishi, is the president of the Japan Katsuobushi Association. This time on Japanology Plus, our theme is katsuobushi. We'll see how this culinary treasure is produced and relished in Japan. And in Plus One, we see how katsuobushi is used in Okinawan cuisine.