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@@ -51,6 +51,11 @@ Based on the official PostgreSQL Books page and community recommendations.
 
 ## 🧠 Advanced & Niche Topics
 
+* [**Deep Dive Into a SQL Query: A Journey Through PostgreSQL's Query Processing**](https://leanpub.com/deep-dive-into-a-sql-query)  
+  *Jesús Espino (2026)*  
+  Traces the full lifecycle of a SQL query through PostgreSQL — from parsing and planning to execution and storage.  
+  Also available in Spanish: [*Anatomía de una consulta SQL*](https://leanpub.com/anatomia-de-una-consulta-sql).
+
 * [**PostgreSQL 14 Internals**](https://postgrespro.com/community/books/internals)  
   *Egor Rogov (2023)*  
   Deep dive into PostgreSQL internals, storage, and execution engine.