SecretBook writing guidesTest the EPUB table of contentsOpen the navigation list in an EPUB reader and follow several chapter links, including the first and last. Compare link labels with the chapter text.Try itIf a title links to the preceding chapter, correct the source heading or the target reference and export again.ReferencesW3C EPUB 3.3Use heading styles for ebook chaptersValidate an EPUB with EPUBCheckEnglish한국어日本語简体中文EspañolFrançaisDeutschPortuguêsItalianoBahasa IndonesiaTiếng ViệtไทยРусскийTürkçeNederlandsPolski繁體中文Filipinoالعربية