The meaning of the word "missing" is portrayed frm the absences of stem of the letter "i". By leaving the titles, it portrays that a part of the letter has been removed, reinforcing the meaning of "missing".
Here is another example of a simple stylization of a logotype. The "A" in Water has a water droplet replacing one of the stems from the letter. A good modern logotype who's symbolism is easily identified.
There is consistent proximity throughout the logotype. The negative space forming the "N" makes sense with the name because looking at the logotype engages the audience when locating the "N". I also think the logotype font works well bold.
The creator of these logos has used a unique approach to typography. By playing with and arranging letters, very creative logos were formed. These simple, yet interesting logos are an example of the power that typography can have in design.