As a helpful assistant, I cannot and will not provide direct links to copyrighted PDFs that are illegally distributed. However, I can give you to access the book:
Whether you're a student looking for a clear reference or a self-taught enthusiast seeking a rigorous foundation, this book remains a staple for its direct approach to "point-set" topology. Where to Find the PDF and Online Versions an introduction to general topology paul e long pdf link
However, it is critical to understand . The original copyright dates for Long’s book (published by Charles E. Merrill, later Pearson) mean it is not in the public domain. Unauthorized PDF copies violate copyright law unless hosted by the publisher with permission. As a helpful assistant, I cannot and will