diff --git a/ddl/schemas/education/tables/16-review_helpful_votes.sql b/ddl/schemas/education/tables/16-review_helpful_votes.sql
new file mode 100644
index 0000000..4d78074
--- /dev/null
+++ b/ddl/schemas/education/tables/16-review_helpful_votes.sql
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+-- =====================================================
+-- TABLE: education.review_helpful_votes
+-- =====================================================
+-- Proyecto: OrbiQuant IA (Trading Platform)
+-- Módulo: OQI-002 - Education
+-- Especificación: Votos de "útil" en reviews de cursos
+-- =====================================================
+
+CREATE TABLE education.review_helpful_votes (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+
+  user_id UUID NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  review_id UUID NOT NULL REFERENCES education.course_reviews(id) ON DELETE CASCADE,
+
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+
+  CONSTRAINT unique_user_review_vote UNIQUE(user_id, review_id)
+);
+
+-- Índices
+CREATE INDEX idx_review_helpful_votes_user ON education.review_helpful_votes(user_id);
+CREATE INDEX idx_review_helpful_votes_review ON education.review_helpful_votes(review_id);
+
+-- Comentarios
+COMMENT ON TABLE education.review_helpful_votes IS 'Votos de usuarios que encontraron útil una review';
+COMMENT ON CONSTRAINT unique_user_review_vote ON education.review_helpful_votes IS 'Un usuario solo puede votar una vez por review';