The ARRL currently has the 2020 handbook discounted to $39.95. With the code below, you essentially get shipping free.
Here are three coupon codes you can use for buying books from ARRL:
TENOFFAPR - $10 off your order of $30 or more. Good until April 30, 2020
FREEINMAY - Free Receiving Antennas for the Radio Amateur book with a $25 or more order. Good May 1 - May 31, 2020
SAVE30JUN - 30% of orders $50 or more. Good June 1 - June 30, 2020
Only one coupon code can be used per order although none of the valid dates overlap in this case.
Enjoy!
- Glenn W9IQ