What's the best American School of Correspondence book to start with?

For most readers, Cyclopedia of Telephony and Telegraphy, Vol. 1: A General Reference Work on Telephony, Etc. Etc. is the most popular American School of Correspondence title on Lex. It's available free as both an ebook and a downloadable EPUB, so you can sample it before committing to a longer work.

How is Lex different from Project Gutenberg for reading American School of Correspondence?

Lex sources public domain books from Project Gutenberg, Standard Ebooks, and the Internet Archive, but adds a modern reader (custom fonts, themes, highlights, bookmarks, dark mode), human-narrated audiobooks for the major works, native iOS and Android apps, and reading progress sync across devices. Project Gutenberg provides the raw EPUB files; Lex turns them into a reading experience.

Yes, Lex is free to use for all public domain books and audiobooks, including every American School of Correspondence title. No signup is required to read or listen. A premium tier exists for AI features and exclusive originals, but the entire public domain catalog is free forever.

American School of Correspondence

The American School of Correspondence is a private, not-for-profit American distance education middle school, high school and college preparatory institution in Lansing, Illinois. It was founded in 1897 and is one of the oldest and largest distance education institutions in the world.

Wikipedia

The American School of Correspondence is a private, not-for-profit American distance education middle school, high schoo...