"En Solo 20 Horas" (The First 20 Hours) by Josh Kaufman outlines a systematic approach to rapid skill acquisition, arguing that 20 hours of focused practice is sufficient to move from novice to noticeably proficient. The method focuses on deconstructing skills, removing barriers, and overcoming the initial "frustration barrier" to master new abilities quickly. You can explore the concepts in this Shortform summary Mantesh - Bard Faculty