Norbert's breed is unknown, but is suspected to be a cross between chihuahua, cairn terrier and lhasa apso.
[1][2] After the release of the first book about Norbert in 2013, he had regularly made public appearances and also worked as a therapy dog.
As part of the publicity surrounding Norbert, he began to receive media coverage about his therapy work and also his books.
Collectively the owners of both animals started a Kickstarter campaign, in order to raise money for the release of their latest book.
[5] Norbert was also recognized as a YouTube star after a video of him being fed cheese received over 1.5 million views, while also having a large following on Instagram, Facebook and Twitter.
[13] Norbert's daily activities were mainly focused on being a volunteer therapy dog to people young and old who are ill or in need.