Use the tripod or, better yet, a copy stand when possible. Since the subject is static, longer exposures are usually fine and let you rely on available light or continuous LED lighting instead of flash.

A ring light is generally not the best choice for books and manuscripts because it gives very flat light and can still create glare. A better portable setup is two small lights placed off-camera on either side of the book, plus a reflector if needed for fill. This helps reduce harsh shadows and gives more control over reflections.

Lighting angle depends on your goal: if you want to show the texture of old paper, use low, raking light across the page; if you mainly want readable, documentary reproduction, place the lights higher and more evenly to reduce texture and glare.

If there is good window light, use it with a reflector. Avoid strong backlight and top light. In many historic locations, flash may be discouraged or prohibited, so LEDs are often the more practical choice. Keep ISO low, stabilize the camera well, and work from a consistent overhead setup for speed and repeatability.