By Joe O'Donnell

1. New Australian release

A new Australia Post stamp issue is focused on the country's famous bushwalking trails, including National Pass, New South Wales; Cape to Cape Track, Western Australia; Larapinta Trail, Northern Territory; and Overland Track, Tasmania.

"Australians have a love of the great outdoors and bushwalking continues to be a popular activity for many Australians," Australia Post Philatelic Manager Michael Zsolt said. "We hope these stamps will appeal to everyone and especially to bushwalkers and avid hikers who like to get out and about."

Read more here.

2. Big find

"A collector in Arizona reports that his recent mail order of stamps from the United States Postal Service included one pane of the intentionally created upright variety of the $2 Jenny Invert stamp."

3. Stamp Market Tips

"Early U.S. booklet panes in the grade of very fine and in mint never-hinged condition are very elusive."

4. Feeling fancy

"The new Fanciful Flowers stamped postal card from the United States Postal Service is the latest to feature a nature design by Ohio-based artist Cathie Bleck."

5. Hot topics

Read the top three stories of the last seven days:

1. ‘The stamp of controversy’: the 1917 unwatermarked 30¢ orange Franklin stamp, perforated 10
2. USPS unable to show savings from stamps printed on unsoakable paper
3. New Scott numbers for Special Olympics, Coastal Birds, more