I've recently started reading a book called How to Prove It" by Daniel Velleman. It may not be exactly what you're looking for, but I picked up while going thro

I've recently started reading a book called How to Prove It" by Daniel Velleman. It may not be exactly what you're looking for, but I picked up while going through my Discrete Math coursework and it has been an enjoyable/challenging read. It's been really helping me understand problems better and in a few cases make the logical leaps needed... although not very large at the moment.