The mayor’s latest tax returns show he did not claim income on his cookbook, Healthy at Last, which he published in Oct. 2020 — even though separate forms he filed with COIB for 2021 indicate he claimed between $5,000 and $50,000 worth of income off a book advance. On his previous annual disclosure report, for 2020, Adams claimed the same income range for the same book, also labeled as a “book advance.”