Recently bought the concise notes book and it's helped me unbelievably as a 6th year student to achieve the grade I desire, I cannot stress enough how beneficial this has been. My grade has increased to a H1/H2 from a H4 from studying the notes from this book. The book changed my grades immensely, it's short and to the point! You are not spending excessive time rewriting irrelevant notes from textbooks. The diagrams in the book are so easy to interpret and make it easy to understand the idea of the chapter. Having struggled with biology before, this book has been a game changer for me. Not only has the book helped my but also the LC revision videos on site which taught me a number of chapters I haven't covered in class yet. I have a full understanding after each video and feel confident to complete exam questions. Videos are explained in a way that you remember the key information, she also gives tips and hints to look out for during the exam. I've found the book brilliant to revise over all chapters. I would highly recommend the revision videos to any student that doesn't feel confident with a topic or to even learn a chapter you haven't covered. I've also found the chance to rewatch the videos a lifesaver and make sure I fully understand I can watch it over and over.