Where can I find training material (compiler guide, etc.) for the STM32 Nucleo board before purchase?

[Tesla DeLorean · Accepted solution]

https://www.st.com/content/ccc/resource/technical/document/user_manual/1b/03/1b/b4/88/20/4e/cd/DM00105928.pdf/files/DM00105928.pdf/jcr:content/translations/en.DM00105928.pdf

STM32 Education https://www.st.com/content/st_com/en/support/learning/stm32-education.html