The book is open-source! All the book's chapters and exercises are open to anybody to see and edit. E.g. First chapter is here: https://github.com/amejiarosario

The book is open-source! All the book's chapters and exercises are open to anybody to see and edit. E.g. First chapter is here: https://github.com/amejiarosario/dsa.js-data-structures-algorithms-javascript/blob/master/book/content/part01/algorithms-analysis.asc https://github.com/amejiarosario/dsa.js-data-structures-algo.... The offline formats (PDF, ePub, Mobi) are there for convenience (and to solve the limited support Github has for asciidoc's `include` directives) but all the text/code is open.