and digital download was 41%). The APA estimates that audiobook sales in 2015 in digital format increased by 34% over 2014. The resurgence of audio storytelling is widely attributed to advances in mobile technologies such as smartphones, tablets, and multimedia entertainment systems in cars, also known as connected car platforms. Audio drama recordings are also now podcast over the internet. In 2014, Bob & Debra Deyan of Deyan Audio opened the Deyan Institute of Vocal Artistry and Technology, the world's first campus and school for teaching the art and technology of audiobook production. In 2018, approximately 50,000 audiobooks were recorded in the United States with a sales growth of 20 percent year over year. U.S. audiobook sales in 2019 totaled 1.2 billion dollars, up 16% from the previous year. In addition to the sales increase, Edison Research's national survey of American audiobook listeners ages 18 and up found that the average number of audiobooks listened to per year increased from 6.8 in 2019 to 8.1 in 2020. Germany The evolution and use of audiobooks in Germany closely parallels that of the US. A special example of its use is the West German Audio Book Library for the Blind, founded in 1955. Actors from the municipal theater in Münster recorded the first audio books for the visually impaired in an improvised studio lined with egg cartons. Because trams rattled past, these first productions took place at night. Later, texts were recorded by trained speakers in professional studios and distributed to users by mail. Until the 1970s recordings were on tape reels, then later cassettes. Since 2004, the offerings have been recorded in the DAISY Digital Talking Book MP3 standard, which provides additional features for visually impaired users to both listen and navigate written material aurally. India Audiobooks in India started to appear somewhat later than in the rest of the world. Only by 2010 did Audiobooks gain mainstream popularity in the Indian market. This is primarily due to lack of previous organized efforts on the part of publishers and authors. The marketing efforts and availability of Audiobooks has made India as one of the fastest growing Audiobooks markets in the world. The lifestyle of urban Indian population and one of the highest daily commute time in the world has also helped in making Audiobooks popular in the region. Business and Self Help books have widespread appeal and have been more popular