A Disclosure Note from E Corp

Essay

A disclosure note from E Corp.'s 2018 annual report is shown below:
Employee Stock Purchase Plan. We have an employee stock purchase plan for all eligible employees. Compensation expense for the employee stock purchase plan is recognized in accordance with GAAP. Shares of our common stock may be purchased by employees at three-month intervals at 85% of the fair value on the last day of each three-month period. Employees may purchase shares having a value not exceeding 10% of their gross compensation during an offering period. Employees purchased the following shares: At June 30, 2018, 150 million shares were reserved for future issuance.
Required:
Describe the way "Compensation expense for the employee stock purchase plan" is recognized in accordance with GAAP by E Corp. Include in your explanation the journal entry that summarizes employee share purchases during 2018.