If you’re looking for 9x9 strategy, I think this is a very good starting point… full of useful ideas. 
As for the OP question, I like White in that situation. Black lower left corner seems small (9-10 points at most). If I were playing White, I’d simply attach to those stones (with C5 and E3), and then start an all-out attack to Black 1 with G7.
Black will find a hard time saving his stone, while White could build territory in the attacking process. That, added to komi, should be enough to win the game (unless I’m overlooking some Black strategies).