I keep all the books for our company and always have. My minor was in business and my major was in marketing.
I've been in the same industry working along with hubby (raw materials) for over 20 yrs. So, when we branched out, started and funded our own company in the same industry, my job is the CFO/bookkeeper/jack of all trades other than the actual selling.
I can't tell you what a bookkeeper would make because we own the company and I run the payroll. I would not be paying a bookkeeper what I pay myself monthly. If I hired outside help, it would depend on the training of the person. A perk we have set up for future use is that any employee part or full time would be covered at 100% for any and all medical coverage. I am very picky with my books being perfect and ready for any audit at any time.
I never did any specific "training" for what I do. I just bought Quickbooks pro on the advice of our legal and tax counsel and started figuring it out for myself. I do have a QB "tutor" to help me process things I am not fully comfortable doing which are some of the quarterly reports, W-2's, etc. I pay her $100/hour. If she comes to my house to sit and work with me, she has a 2 hour minimum. Other than that, I email or call with questions and she sends me an invoice about once a month with prorated amounts for the time spend on the phone or on email.
Quickbooks is very user friendly. If you do pursue bookkeeping, I would certainly get fluent with the QB programs as many companies use it for all bookkeeping.
It also depends on the size of the company your are working with. We run about 3.5 million in sales so I am handling a lot of invoicing, accounts payable, etc in large $ amounts.
Good luck to you!