 With the advent of the computer age , <unk> began deprecating double spacing , even in monospaced text . In 1989 , Desktop Publishing by Design stated that " typesetting requires only one space after periods , question marks , exclamation points , and <unk> " , and identified single sentence spacing as a typographic convention . Stop <unk> <unk> & Find Out How Type Works ( 1993 ) and <unk> with Type : The Essential Guide to Typography ( 2006 ) both indicate that uniform spacing should be used between words , including between sentences . 
