documentclass{article}
usepackage{wrapfig}

usepackage{mwe}
usepackage{lipsum}

begin{document}
lipsum[1]
begin{wrapfigure}{r}{0pt}%
  includegraphics[width=4cm]{example-image-a}%
end{wrapfigure}
lipsum[2]
begin{wrapfigure}{l}{0pt}%
  includegraphics[width=5cm]{example-image-b}%
end{wrapfigure}
lipsum[3-4]
end{document}

starttext
 placefigure[left][]{}{externalfigure[little-prince]}
 dorecurse{2}{input zapf par input tufte}

 dorecurse{1}{input zapf par input tufte}startfiguretext
 [right]
 []
 {}
 {externalfigure[little-prince]
 [width=.3makeupwidth]}

      Coming back to the use of typefaces in electronic
      publishing: many of the new typographers receive their
      knowledge and information about the rules of typography
      from books, from computer magazines or the instruction
      manuals which they get with the purchase of a PC or
      software. There is not so much basic instruction, as of
      now, as there was in the old days, showing the differences
      between good and bad typographic design. Many people are
      just fascinated by their PC's tricks, and think that a
      widely||praised program, called up on the screen, will make
      everything automatic from now on.
 stopfiguretext

 stoptext

usemodule[letter]
 setupcolors[state=start]
 setupletterstyle[backaddress=no]
 setupbackgrounds[paper,text,footer][text][background=color,]
 setupletter[fromname={anonymoususer},
    fromaddress={address\ city\ state}]

 setupletteroptions[marking=no,backgroundimage=little-prince]

 setupletterlayer[backaddress][x=24mm,y=40mm]
 starttext
 startletter
    [toname={MIT\Prof. Donald Knuth},
    toaddress={13 anywhere Outthere\utopia, MA\USA}
    opening={Hello Sir},
    subject={Any subject},
    closing={greetings}]

 input zapf
 stopletter
 stoptext