This HBR IdeaCast interview focuses on timeboxing, a productivity method where tasks are scheduled with allocated time slots in a calendar. The guest, Marc Zao-Sanders, discusses his personal struggle with productivity before adopting timeboxing, explaining how it integrates to-do lists with a calendar to improve focus and reduce stress. He details his daily routine, which includes a 15-minute timeboxing session to plan his day, emphasizing the importance of single-tasking and adjusting time allocations as needed. The interview concludes by highlighting timeboxing's benefits for both individual productivity and team collaboration, suggesting it fosters better communication and reduces the need for constant follow-ups.