Sor Isaura Marcos Sánchez (Los Santos, Salamanca, 13 January 1959) is a cloistered nun of the Poor Clares order at the Monastery of Pedralbes whose photographs are based on a peculiar reflection technique that avoids the use of digital retouching programs.

The whole reality of the monastery is what shapes the subject matter of her works,[1] which are dedicated exclusively to charitable purposes.

She was deeply impressed by the Franciscan charism of the Poor Clare Sisters of the Monastery of Santa Maria de Pedralbes, founded in 1326 by Queen Elisenda of Montcada, and therefore decided to enter the order in 1976, when she was seventeen years old.

[2] Her creations are the expression of her way of understanding the contemplative life, following the rule of Saint Clare of Assisi of 1211.

[11] On June 23, 2024, in the cloister of San Damiano, Assisi, she presented the photographic exhibition of the book Clara de Asís, espejo fuera del tiempo (Clare of Assisi, mirror out of time), with 51 photographs taken in the monastery of Pedralbes.