HTML & CSS Crash Course (PDF)
Tutorial PDF (IIMC Hyderabad) — beginner-friendly HTML guide.
HTML5 & CSS3 for the Real World
Open edition PDF hosted by university library (educational copy).
Introduction to HTML5 (W3C)
W3C specification page (official). The standard is an HTML resource — open resource link.
The HTML Handbook
Flavio Copes — free online handbook (official author page).
Learn to Code HTML & CSS
Shay Howe — free online book/guide (official).
HTML5 Boilerplate — Documentation
HTML5 Boilerplate official docs and guide (open resource).
HTML5 UP — Templates & Guide
Free responsive templates with documentation (open resource).
Simple HTML Template Pack (GitHub)
Collection of starter HTML files — GitHub raw files (direct raw links to HTML, not PDF).
HTML Reference — MDN
Mozilla Developer Network: the canonical HTML reference (open resource).
HTML5 Pocket Reference (Sample)
Sample pages & preview from the publisher; open resource preview.
HTML5 Boilerplate Starter (GitHub)
Starter repository — official GitHub project (open resource).
Templated — Free HTML templates
Collection of license-free templates and downloadable ZIPs (open resource).
HTML Tutorial (TutorialsPoint) — PDF
TutorialsPoint hosts a PDF tutorial — direct PDF link.
HTML5 Student Guide (Open PDF)
Educational PDF covering HTML5 basics (university-hosted).
Practical HTML & CSS (Open PDF)
University/teaching PDF for classroom use.
Beginner’s Guide to HTML (Open PDF)
Educational guide/booklet in PDF from a tech university.
HTML Quick Reference (Open PDF)
Compact cheat-sheet in PDF format (educational).
Practical Web Design Notes (Open PDF)
Lecture notes and examples as a downloadable PDF.