Wouldn't use books (just read papers, I liked Bioinformatics back in the day but it's a bit too math-y, generally the quality is there though). Do you mean genomics or some of the other subdomains of bioinformatics? Do you mean more for human health or ecology applications?
On a semi related note I got a biochemistry degree 10 years ago and have been writing software outside the field ever since. My partner still is in genomics so I do somewhat keep up but I definitely still love biochemistry and miss keeping up with it. So, uh, do you think you'd like to talk to someone about your projects or share good papers or something?