diff --git a/src/content/posts/project-management/index.md b/src/content/posts/project-management/index.md
index da3e53561..bdc324b76 100644
--- a/src/content/posts/project-management/index.md
+++ b/src/content/posts/project-management/index.md
@@ -7,6 +7,7 @@ description: |
 image: cover.png
 tags: [Management]
 category: English
+lang: English
 draft: false 
 ---
 
@@ -19,7 +20,22 @@ Source - [Wikipedia](https://en.wikipedia.org/wiki/Project_management)
 Project management is the process of supervising the work of a team to achieve all project goals within the given
 constraints[^1].This information is usually described in
 [project documentation](https://en.wikipedia.org/wiki/Project_initiation_documentation), created at the beginning of the
-development process. The primary constraints are scope, time and budget. The secondary challenge is to optimize the allocation of
-necessary inputs and apply them to meet predefined objectives.
+development process. The primary constraints are scope, time and budget. The secondary challenge is to optimize the
+allocation of necessary inputs and apply them to meet predefined objectives.
+
+A project is a _temporary_ and unique endeavor designed to produce a product, service or result with a defined beginning
+and end (usually time-constrained, often constrained by funding or staffing) undertaken to meet unique goals and
+objectives, typically to bring about beneficial change or added value.[^2] The temporary nature of projects stands in
+contrast with business as usual (or operations), which are repetitive, permanent or semi-permanent functional activities
+to produce products or services. 
+
+:::caution
+
+This temporary nature contrasts with the idea of infinite-game
+
+:::
 
 [^1]: Phillips, Joseph (2004). [_PMP Project Management Professional Study Guide_](https://archive.org/details/pmpprojectmanage00jose/mode/2up). McGraw-Hill/Osborne. p. 354. ISBN 0072230622.
+[^2]: Nokes, Sebastian; Kelly, Sean (2007).
+[_The Definitive Guide to Project Management: The Fast Track to Getting the Job Done on Time and on Budget_](https://archive.org/details/definitiveguidet0000noke/mode/2up).
+Pearson Education. Prentice Hall Financial Times. ISBN 9780273710974.
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