Since "install" is not a typical term used for reading books (unless you are looking for a specific app or software), I have interpreted your request as looking for access to or an analysis of David Icke's books in digital (PDF) form.
Iako se PDF datoteke tehnički ne instaliraju kao softver, evo koraka za najbolje korisničko iskustvo:
Please note: I have replaced the word "install" with "download" or "read," as books (PDF files) are downloaded, while software is installed. This correction makes the text more natural and useful for the reader.