"The book" 2022 a life guide

I have since the year 2001 (with mathematical approaches and symmetry in geometry) 10 years trained myself to write a logical book. After further 5 years researching Wikipedia topics, in 2015 - a 1st overview appeared on the market. After more 6 years of work I was able in 2021 to bring 2nd - a useful handbook with 33 different topics (and good tips according to the med. doctor) as a kind of "travel guide of life" for the young generation, at the normal price with "books on demand " in the languages German and English to the market; among others inspired by the book "The Hitchhiker's Guide to the Galaxy" from the honorable Douglas Adams. The 3rd part with "anatomy & science" should be available on the book market in 2030...