For at least two decades, I have been conducting think-aloud interviews with users to test their understanding of content.
I have tested - and continue to test - a diverse range of topics, for example: cycling safety, exchange-traded funds, denied insurance claims, superannuation fees and charges, and many others. I have watched how people read letters, landing pages, statements and brochures.
As part of this experience, I have learned how people actually read.
It is a myth that all users skim read information
Content creators are often advised to write for skim readers who navigate via headings.
My experience is that this is a false assumption. In the user tests I have conducted, I have seen many times that while some users do skim read, others users read carefully, while some don't read at all.