The document summarizes findings from surveys about open access publishing. It shows that the main reasons scientists publish open access are to reach a wider audience and comply with funder and institutional policies. It also examines how much authors pay in publication fees, how they cover these costs, and barriers to open access publishing. The surveys found that fees range from $0 to over $5,000, with funding coming from research grants, institutions, or authors themselves. Lack of funds and publisher policies were reasons cited for not publishing open access.