This week I do a roundup of the top 5 publishing companies in the world, otherwise known as "The Big 5".https://www.nytimes.com/2021/02/25/books/penguin-random-house-simon-schuster-publishing.htmlhttps://www.harpercollins.com/pages/worldwide-company-profilehttps://www.penguinrandomhouse.com/about-us/our-story/https://www.britannica.com/topic/Penguin-Random-Househttps://www.penguin.co.uk/company/about-us/company-history.htmlhttps://www.palgrave.com/gp/media-centre/press/macmillan-celebrates-175-years-of-publishing/15483290https://www.hachettebookgroup.com/company-history/https://about.simonandschuster.biz/corporate-history/