A useful crochet bookmark is thin enough to sit inside a closed book and long enough to find easily. That makes it a good small project for practising even rows and a tidy foundation. Begin with a plain strip before adding flowers, tassels or raised stitches that can make the bookmark bulky.
Stitch terminology: This guide uses US names. US single crochet is UK double crochet; US half double is UK half treble; US double is UK treble. See the full US/UK reference.
Choose the yarn for the page, not just the photograph
A smooth, fine cotton or another stable, washable yarn can make a more manageable strip than a thick, fluffy strand. Test the actual fabric in a book you do not mind using for a trial. A soft yarn can still produce a surprisingly thick bookmark if the stitch is dense.
Check that the finished yarn is clean and dry before putting it against paper. Strong colours should be tested for transfer on a spare sample rather than first tried inside a valuable book.
Make a narrow practice strip
Chain eight. Single crochet in the second chain from the hook and in the remaining chains, giving seven stitches. Chain one, turn and make seven single crochets, beginning in the first stitch. The turning chain does not count.
Repeat that row until the strip reaches a useful length for your book. Around 15 cm, or about 6 inches, is a possible trial length, but measure the book and decide how much should remain visible.
Adjust width from the sample
Seven stitches can make very different widths in different yarns. If the strip is too wide, remake it with fewer stitches; if it is too narrow to handle comfortably, add a few. A plain single-crochet strip has no complex repeat to preserve.
Use a starting chain one greater than the desired stitch count in this setup. For example, six worked stitches begin with seven chains. Keep the same rule at the ends of later rows.
Check the edges before finishing
Put a marker in the first and last stitch while learning. A bookmark is narrow, so one extra or missing stitch changes its shape noticeably. If the strip leans, count the row and check whether the turning chain has accidentally become a stitch.
A back-bump foundation can leave a tidy lower edge. Try it on a second sample rather than switching insertion methods halfway across the first chain.
Keep the finishing as flat as the fabric
Fasten off and weave the tails through suitable stitches without stacking several passes in one small spot. Inspect both sides and feel for a hard lump. A large knot at the end can defeat the purpose of a thin bookmark.
If you add a tassel or motif, position it so it sits outside the closed pages. Make the attachment secure without adding a bulky centre to the part that lies inside the book.
Test the finished bookmark in use
Care for the strip according to the yarn label and let it dry completely. Close a book gently around it and check whether the spine and pages sit comfortably. If the strip feels too thick, use a finer yarn for the next version instead of forcing the book shut.
Keep the final width, length and stitch count. A small, repeatable design makes a useful way to use matching leftovers without promising a fixed size from every scrap.
Continue learning
Improve the lower edge · Make an outside-page decoration · Choose suitable leftovers
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