They are not. That "one page" rule of thumb has to do with how easy it is for the time-constrained reader to find relevant information in the document, not wit

They are not. That "one page" rule of thumb has to do with how easy it is for the time-constrained reader to find relevant information in the document, not with cramming everything into a single page. It is perfectly fine to detail your apprenticeship at X and your 3 years of experience in Y in further pages as long as those are mentioned on the first page. If some critical info can _only_ be found on page 2 or 3, then it doesn't exist.