in-this-famous-face-vase-illusion-developed-by-danish-psychologist-edgar-rubin-in-1915-the-viewer-is-usually-presented-with-two-shape-interpretations-two-faces-or-a-vase 2

Revenue vs cash flow can appear different, depending on your knowledge.

Try our online invoicing software for free

Send professional-looking invoices
Accept online payments with ease
Keep track of who's paid you

Start sending invoices