The Spanish translation of my book SQL Performance Explained has just been published. It’s the fifth language so far … now there’s a German , English , French , Japanese and Spanish version of the book! You can buy it directly from the book website (PDF or paperback), and some it’s also available through some European Amazon stores (paperback only). The prices are the same as for the other languages: €9.95 for the PDF , €29.95 for the hard copy, €34.95 for PDF+paperback . If you order from the book website, you get free shipping (worldwide!) As for the other languages, all of the Spanish content is available for free at https://use-the-index-luke.com/es/ . As part of this translation effort, we (the translators and myself) also updated the content to the latest database releases: Db2 11.1, MySQL 5.7 ( carefully phrased so it stays correct for 8.0 ), Oracle 12c R2, and PostgreSQL 10. As the book focuses on concepts, only a few changes were nee...