Digital textbook 📕

 https://youtu.be/bTil3_pmX9c?si=D_pipfBa4ppJUUFe

https://docs.google.com/presentation/d/1NflhsRWX6A53HvItOzDePZX4XhgWAStM/edit?usp=drivesdk&ouid=106597514193485402713&rtpof=true&sd=true