This book is a collection of tutorial notes and sample codes written by the author while he was learning XSL-FO (Extensible Stylesheet Language - Formatting Objects) himself. Topics include: Introduction to XSL, XSL-FO, and Apache FOP; XSL concepts: Area Model, Inline Stacking and Block Stacking; Page layouts: simple-page-master and page-sequence-master; Page regions: region-body, region-before, region-after, region-start and region-end; Formatting objects: Block-Level and Inline-Level Objects; Adding Graphics from Files and SVG Elements; Managing DPI Resolution; Building Tables of Rows and Columns; Managing Lists of Items and Floating Blocks; Adding External and Internal Hyperlinks; Building Table of Contents; Adding Page Headers and Footers; Managing Fonts: Generic Fonts; Adobe Base-14 Fonts; Embedding Fonts; HTML with SVG and MathML to PDF conversion. Updated in 2024 (Version v2.25) with minor updates. For latest updates and free sample chapters, visit https://www.herongyang.com/XSL-FO.