There seems to be a shortage of books out there on using C++ with Raspberry Pi! I could literally only spot two, which I will paste below:
https://www.amazon.com/Exploring-Raspberry-Pi-2-C/dp/1484217381#customerReviews
https://www.amazon.com/Learn-Program-Using-Raspberry-introduction/dp/0995791813
Does anyone know any other books at all? C++ books with Raspberry Pi seems to be such a thing of niche!