Prof Robinson's book is Topological Signal Processing [1], and there are a ton of papers linked from his home page [2].

For a general overview, check out the wikipedia page: https://en.wikipedia.org/wiki/Sheaf_(mathematics)

[1] https://www.amazon.com/Topological-Signal-Processing-Mathema...

[2] http://www.drmichaelrobinson.net/publications.html