Reply To: Siddurim – why are they printed like this?

I believe the introduction to the Birnbaum siddur (anyone still have one?) makes a point of the fact that all the type is the same size. Artscroll pretty much uses the same size except for seasonal additions. I suspect the real reason for older siddurim using multiple sizes is to make things fit better, preventing what printers call “widows” (the last line of a paragraph on the next page).