Ross Watkins ; illustrated by Liz Anelli. Jill Atkins ; illustrated by Julia Seal. cross-sections illustrated by Gill Tomblin Jill Atkins ; illustrated by Kelly Breemer. illustrated by Liz Anelli. cross-sections illustrated by Peter Bull. Mark Twain ; illustrated by Valerio Vidali. cross sections illustrated by Peter Bull by Jill Atkins ; illustrated by Jordan Wray. Charles Dickens ; illustrated by Gustavo Mazali.