book-lock

<svg
  xmlns="http://www.w3.org/2000/svg"
  width="24"
  height="24"
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  stroke-width="2"
  stroke-linecap="round"
  stroke-linejoin="round"
><path d="M18 6V4a2 2 0 1 0-4 0v2" /><path d="M20 15v6a1 1 0 0 1-1 1H6.5a1 1 0 0 1 0-5H20" /><path d="M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H10" /><rect x="12" y="6" width="8" height="5" rx="1" /></svg>

<i class="ti ti-book-lock"></i>

ti ti-book-lock

<i class="ti ti-003390"></i>

ti ti-003390

<svg
  xmlns="http://www.w3.org/2000/svg"
  width="24"
  height="24"
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  stroke-width="2"
  stroke-linecap="round"
  stroke-linejoin="round"
><path d="M18 6V4a2 2 0 1 0-4 0v2" /><path d="M20 15v6a1 1 0 0 1-1 1H6.5a1 1 0 0 1 0-5H20" /><path d="M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H10" /><rect x="12" y="6" width="8" height="5" rx="1" /></svg>

<svg
  xmlns="http://www.w3.org/2000/svg"
  width="24"
  height="24"
  viewBox="0 0 24 24"
  fill="none"
  stroke="currentColor"
  stroke-width="2"
  stroke-linecap="round"
  stroke-linejoin="round"
><path d="M18 6V4a2 2 0 1 0-4 0v2" /><path d="M20 15v6a1 1 0 0 1-1 1H6.5a1 1 0 0 1 0-5H20" /><path d="M4 19.5v-15A2.5 2.5 0 0 1 6.5 2H10" /><rect x="12" y="6" width="8" height="5" rx="1" /></svg>

https://cdn.jsdelivr.net/npm/@ticnob/icons@1/icons/book-lock.svg