Tax books or online resources

My adult daughter had her own sole business this year. She will be filing taxes that way obviously. She has a couple clients 1099 her as well. Many clients Paypal or Venmoed her aside from checks and cash.
Wanting to help her take advantage of as many deductions she can.
Does anyone recommend any Great resources to start with aside from an Accountant?
TIA

Learning about the tax law itself may be one the highest return activities she can do. If she can run a business, she can probably understand IRS publications. Tax prep companies want you think taxes are complicated, but the parts that are relevant to most people simply aren’t. Here’s where I’d start:

Great Thank you!