Beginning of 20th century design

Frank Lloyd Wright was an American architect who was a big influence in 20th century design. He really used a lot of organic materials, and he liked open spaces. He was really interested with the interior space of where people lived and worked. Along with architecture, he also included furniture, graphics, fabrics, wallpapers, and stained-glass windows. The Glasgow school was developed during this time by "the four". They liked symbolic imagery and stylized form. Vienna Secession was an important event that happened in this chapter. A major difference is the artists love of clean , simple, sans serif lettering. The Vienna Secession artists did not stop from experimenting. Moser played a major role the approach to graphic design. Alfred Roller also made significant steps in graphic design. The German artist, architect, and designer Peter Behrens played a major role in this chapter and continued to later. He was known for san-serif typography and the use of the grid system. He has been known as the first industrial designer. AEG also had their logo designed during this time by Behrens. Because this was not available in type yet, they had to hand letter it. In 1890 the first underground electric railway opened in London. Frank Pick designed the logo and is still used today.
What I found interesting about this chapter was all of the London underground stuff. I went to London this past December for a week, and it is really cool to read about what I was experienced while I was over there.
My question from the reading is did I miss what they said what AEG stood for?