Hi Welcome. A copy of LH Speary's "The Amateurs lathe" would be a good start. Also have a look on YouTube for the machining channels such as mrpete22,Abom79 etc. There is a mass of info on YouTube, just type your question in the search box there. Also a search through this forums topics will help as well. Many answers here. If you cannot find the answer just ask and the good folks here will no doubt help.
Hope this helps.
regards