I'm going to go out on a limb and suggest "Founders at Work" by Jessica Livingstone. Its not technical however it is full of interviews from a good selection of

I'm going to go out on a limb and suggest "Founders at Work" by Jessica Livingstone. Its not technical however it is full of interviews from a good selection of the most famous startup founders of this generation. There are a lot of Y combinator interviews and even one with our very own Paul Graham.