Both books are definitely worth reading. But Doist’s essay is a thorough crash course on the basics.
Douglas Estes offers some helpful reflections on perfectionism, especially as it affects academic writing.
On perfectionism and writing, see also Ryder Carroll’s pithy analysis of perfectionism versus failure.
Disclaimer: The views expressed on this site are my own and do not necessarily reflect those of any other person(s) or institution(s).
Disclosure of Material Connection: Some of the links in the post above may be “affiliate links.” I only recommend products or services I genuinely believe will add value to you as a reader. But, if you click one of these links and purchase the item, I will receive an affiliate commission from the seller at no additional cost to you. Consequently, I am disclosing this affiliate status in accordance with the Federal Trade Commission’s 16 CFR, Part 255: “Guides Concerning the Use of Endorsements and Testimonials in Advertising.”