This comprehensive full-colour guide to Arabic letter design, offers an essential resource for graphic designers, type designers, university students, and branding professionals working across Arabic and Latin scripts. The publication provides an in-depth exploration of designing Arabic letterforms from first principles, covering critical topics such as proportion, spacing, typographic rhythm, side bearings, kerning, and joining behaviour. It also examines the nuances of curves, corners, diacritics, ligatures, and the management of weights and type instances. In addition, the guide addresses the complexities of harmonising Arabic and Latin typographic systems, supported by practical workflows using Glyphs and real-world examples of bilingual typefaces. A visual exploration of Letraset further highlights the historical context that has shaped modern typography.