Post-production is where the movie comes together. Lumet stresses the importance of:

How editing shapes pacing, tension, and structural rhythm. The Digital Search: PDFs, Repacks, and Accessibility

Making Movies by Sidney Lumet is an essential read for anyone who wants to understand how movies are made. Lumet's book is an honest, no-nonsense look at the business of filmmaking, from the budget to the final cut. If you're serious about a career in film, download the PDF now.

Some libraries offer digital lending of the book.