Very interesting book. I'd heard of Holmes before but didn't really know much about him. This still only scratches the surface but it's an interesting tie in with the World's Fair.
A lot of the information in this book is pretty technical and not always the easiest to follow. One of my favorite bits of information I learned is that, before he was an astronaut, he worked on a research project called Dyna-Soar. This was surprisingly boring.
This site says this is book 3 but my library had it as book 1. I didn't seem to have missed anything vital o this story by starting here anyway. Looking forward to seeing how Netflix does with the adaptation.