And this morning (23rd) the first one of them already showed up on the doorstep! \o/
It's Galileo's Daughter by Dava Sobel. I really enjoyed her book
Here's a good plot summary:
This is the story of Galileo's life with actual historical record commentary from Vatican documents and the letters written by Galileo's daughter in a convent, the nun Sister Maria Celeste. We follow the development of Galileo's ideas and writings and how they were thwarted. We see Galileo support his children, especially this daughter, who supports him in return and comments on everything from the planets' revolution around the sun to what his housesitter should do with his wine while he's away at trial in Rome.
Can't wait to get started. But first have to finish The History of Ugliness by Umberto Eco.