■Preface
Online Physics Lectures: JPS Outreach Activity during Covid-19
Guo-qing Zheng......445

■Overview Articles
FFLO Phase in Layered Organic Superconductors
Shinya Uji and Shiori Sugiura......448

■Researches
Network Structure of Information Spreading on Social Media
Yukie Sano, Hideki Takayasu, and Misako Takayasu......458

Sliding Friction at Intersonic Sliding Velocities
Tetsuo Yamaguchi, Takuya Yashiki, Takehiro Morita, and Yoshinori Sawae......464

Ferroelectric Skewed Electronic Band Structure―New Way of Ferroic Semiconductor
Jun Kano, Norihiro Oshime, Eiji Ikenaga, and Shintaro Yasui......469

Rectification Effect in Noncentrosymmetric Crystals
Toshiya Ideue, Yuki Itahashi, and Yoshihiro Iwasa......475

■La Toccata
Overview of "Quantum Technology Innovation Strategy"
Yoshi-aki Shimada......481

■JPSJ Selected Papers in the Latest Issue......484

■PTEP Selected Papers in the Latest Issue......487

■Reports on JPS Meeting......490

■Physics Community News......497

■Book Reviews......498

■Letters and Comments......501