Making society has posted the Best Entrepreneur Books to Build a Hardware Company. The list looks pretty interesting. The book Hardware Startup by Renee DiResta and led me to her blog and presentation on Hardware by the Numbers: A Narrative. Her presentation describes the trends in funding hardware projects between 2011 and 2013. More VCs are funding hardware companies but it's still hard to get funding and even harder to get follow on funding. Fortunately, crowdfunding has really helped get hardware companies started and increased VC participation.