You can put whatever you want in a Book of Shadows…whatever you love and want to include in your practice…and it can be in any form you like. I personally love color so I add colored pages or color prints whenever I can. Mine has these sections (well, it started out this way, then the book got too big and started falling apart…and now the sections are in different books
they are portfolios I buy online that have lots of room for pages you slip in. Binders would be so much more pratical for the way I organize but I like the way portfolio pages flip and lie flat. So I use those!
So the sections in my BOS are spellcrafting tips and correspondences, my circle casting ritual; tools, cleansing and charging; candle magick; herbs and incense; crystals; spiritual connection and devotions; lunar magick, solar magick, sabbats, esbats, conventional holidays, birthday magick, ocean magick, storm magick, spells and rituals for: abundance, banishing and protection, blessings, confidence, creativity, dream work, happiness, healing, justice, love, luck, manifesting, mindfulness, money magick, motivation, manifesting and productivity, purification, protection, transformation, truth.
I also have a private Pinterest board that has soooo many sections and pins - with more info on topics like augury, aura work, ancestor work and other topics I haven’t created room for yet in the BOS but am learning more about. I find Pinterest board to be that to be really handy for quick reference.
Then I have a little BOS (that is in a mini photo album) that I take with me when I travel that has of course, travel spells and a few ones I like to keep on hand. So, that’s just how I do it. Maybe will give you some ideas for what may work for you.