Product Development Assets

12 Months Ended

Apr. 30, 2017

Product Development Assets [Abstract]

Note 8 – Product Development Assets

Product development assets consisted of the following at April 30 (in thousands):

	2017	2016
Book Composition Costs	$28,884	$34,697
Royalty Advances	28,320	31,182
Other Product Development Costs	42,071	6,247
Total	$99,275	$72,126

Book composition costs are net of accumulated amortization of $172.6 million and $179.6 million as of April 30, 2017 and 2016, respectively. Other Product Development Costs are net of accumulated amortization of $26.4 million and $19.7 million as of April 30, 2017 and 2016, respectively. The increase in Other Product Development Costs was principally due to the Atypon acquisition ($28 million) and other spending to support business growth.