The Pattern is in PDF format. You will need to glue on some details together.
The pattern don't include a tutorial on how to sew. I have sewing tutorial for similar model: it's the same bodysuit without sleeves. Please have a look:
Pattern in sizes XS, S, M, L ( EU 34, 36, 38, 40, 42).
Made for a regular A4 printer.
Suitable for beginners.
Without seam allowance. I suggest adding 1 cm for seam allowance
It requires about 32 inches or 80 centimeters of the main fabric.