Just as Telemachus was the son of Odysseus, so Telemachus is the son of Ulysses. It contains a wealth of information about Joyce, his works and literary correspondences.
You could almost call it “Ulysses” for Dummies!
In fact, you don’t need to read Ulysses anymore. You can learn everything you need to know about Ulysses just by reading TMAC.
There are many electronic versions of Ulysses available on the internet, as well as lots of websites with critical notes and links to scholarly aricles and books.
I will add links to Ulysses and Joyce-related items here.