On April 6, 2020, Nature Physics published a "focus issue" on the European Strategy Update (ESU). In addition to an introductory editorial on the ESU process, it includes articles about CLIC, FCC, physics beyond colliders and accelerator-based particle-physics activities in the US and Asia. The texts target an audience with general physics knowledge, not necessarily of high-energy physics.

The CLIC perspective, written by Eva Sicking and Rickard Ström, surveys the principal merits of the CLIC accelerator concept, presents its detector concept, and examines its precision-measurement programme and reach for discovering new physics phenomena such as new particles. In summary, CLIC stands out from the other proposals by representing an attractive proposition for the next-generation particle collider by combining an innovative accelerator technology, a realistic delivery timescale, and a physics programme that is highly complementary to existing accelerators, reaching uncharted territory.

The ESPPU Nature Physics publication (https://www.nature.com/collections/heigibehfc) comprises:

• Editorial:  https://www.nature.com/articles/s41567-020-0876-y
• CLIC: https://www.nature.com/articles/s41567-020-0834-8
• FCC:  https://www.nature.com/articles/s41567-020-0856-2
• Physics Beyond Colliders: https://www.nature.com/articles/s41567-020-0838-4
• Asia and US (not open access)*: https://www.nature.com/articles/s41567-020-0863-3

*This publication can be accessed with the help of the CERN library, as described here: http://library.cern/resources/remote