I'm excited about the microbe book. My daughter is obsessed with "good and bad bacteria". Our car conversation yesterday ended up being me explaining how the man in the book The Martian found a way to get bacteria into the Martian soil to make potatoes grow (hint: he produced the bacteria himself). Then I had to tell her everything that happened in the book (so far ... since I'm only halfway through). A kid's book on microbes! There need to be more.