Mead Over presents his latest book, Achieving an AIDS Transition: Preventing Infections to Sustain Treatment. As one of the leading health economists focused on the HIV/AIDS epidemic, Over is well-placed to propose solutions to the widening gap between funding and persons needing treatment for AIDS. As it stands today, there are two new infections each year for every individual enrolled in treatment. This book presents the AIDS Transition–lowering new infections to reverse the upward trend in persons living with HIV–as a goal for all participants in the fight against HIV. He outlines steps that donors, policy makers and practitioners can take to successfully stem the tide of HIV by incentivizing prevention while sustaining treatment.