Content pillars are the 3–5 recurring themes your account is known for — for example tutorials, behind-the-scenes, quick tips and case studies. Rotating between them keeps your feed varied while staying on-brand.
Back-to-back posts on the same theme make your feed feel repetitive and can fatigue your audience. Alternating a heavy educational pillar with a lighter, more personal one keeps engagement fresh and gives followers a reason to keep checking in.
Three to five is ideal. Fewer than three feels repetitive; more than five is hard to stay consistent with. Weight your most valuable, educational pillar the heaviest and use the others for variety.