数据科学实战手册（R+Python）（第2版）

Before Memmo my notes were scattered across PDFs. Now a workspace pulls everything into one place — I see exactly what's still left to study.

Memmo's summaries are gold before exams. I don't have to re-read 800 pages two weeks before — just the important parts.

The AI chat has saved me the night before an exam more than once. I just keep asking until I get it — no waiting on a study group to reply.

The quizzes hit exactly what I need to know. Memmo tracks what I get stuck on — so I only practice what's worth it.

Flashcards with spaced repetition are magic. Memmo knows when I'm about to forget something and brings it back.

The AI podcasts are my favorite. I listen on my way to school and get a recap without sitting at a computer.