The letter requests approval from the boss/company to attend the Compute Midwest conference in Kansas City from November 9-11. It provides details on the 2-day conference and hackathon event for developers, as well as major speakers from companies like Box, GitHub, and Joyent. Attending would allow the employee to connect with 400+ other tech professionals, learn new ideas and solutions to bring back to benefit company projects. The total estimated cost for registration is provided, and the employee offers to submit a report on learnings and outcomes from the event.