A quick Google search for "Linguaphone English Course.pdf" will lead you down a rabbit hole of torrent sites, file-sharing forums, and sketchy download links. Before you click, consider the reality:
If you pair the PDF text with its native audio tracks and commit to studying just 30 minutes a day, you will build a sophisticated, grammatically correct, and natural command of the English language. Linguaphone English Course.pdf
Do not rush through the PDF. Spend two or three days on a single lesson until you can understand every word without looking at the translations and can repeat the sentences smoothly. A quick Google search for "Linguaphone English Course