This is a difficult question to answer, as it depends on the size and style of your scrapbook, as well as how many pictures you want to include. A good rule of thumb, however, is to have at least 30-40 pictures for an average sized scrapbook. This will give you enough room to include a variety of photos without feeling cramped or overwhelmed. Of course, if you're planning on including more elaborate embellishments or journaling, you may need fewer pictures. Ultimately, it's up to you to decide how many pictures you need for your scrapbook. Start by gathering all the photos you want to include, then trim down your selection based on space and design considerations. With a little planning and creativity, you can create a beautiful scrapbook that tells your story in pictures.