L'Horoscope annuel simplifié ou Les Véritables bases de toutes prévision astrologiques is a concise guide to annual astrological forecasting. Written in French by Henri‑Joseph Gouchon, the book distills complex celestial calculations into straightforward, practical advice for readers seeking to understand how planetary movements influence yearly trends. It covers the fundamentals of zodiac signs, planetary aspects, and the interpretation of transits, offering clear explanations that make the subject accessible to beginners. The text also includes a brief overview of historical astrological practices, illustrating how modern techniques have evolved from ancient traditions. With its straightforward layout and focus on essential concepts, the book serves as a useful reference for anyone interested in exploring astrology without becoming overwhelmed by technical detail.