The Producers book is really an excellent look into how a big musical comes together - the entire process is extremely well documented and virtually every aspect of the production is covered. The book can be found very cheaply, too. Even if you’re not a fan of the show itself, it’s really insightful to the creative process of putting a big budget musical together.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."